# FREE CLEP College Algebra Practice Test

Welcome to our FREE CLEP College Algebra Math practice test, with answer key and answer explanations. This practice test’s realistic format and high-quality practice questions can help you succeed on the CLEP College Algebra Math test. Not only does the test closely match what you will see on the real CLEP College Algebra, but it also comes with detailed answer explanations.

For this practice test, we’ve selected 20 real questions from past exams for your CLEP College Algebra Practice test. You will have the chance to try out the most common CLEP College Algebra Math questions. For every question, there is an in-depth explanation of how to solve the question and how to avoid mistakes next time.

Use our free CLEP College Algebra Math practice tests and study resources (updated for 2021) to ace the CLEP College Algebra Math test! Make sure to follow some of the related links at the bottom of this post to get a better idea of what kind of mathematics questions you need to practice.

## 10 Sample CLEP College Algebra Math Practice Questions

1- If $$2x+2y=2, 3x-y=7$$, which of the following ordered pairs $$(x,y)$$ satisfies both equations?

A. $$(1,3)$$

B. $$(2,4)$$

C. $$(2,-1)$$

D. $$(4,-6)$$

E. $$(1,-6)$$

2- If $$f(x)=3x+4(x+1)+2$$ then $$f(4x)=$$?

A. $$28x+6$$

B. $$16x-6$$

C. $$25x+4$$

D. $$12x+3$$

E. $$12x-3$$

3- A line in the $$xy$$-plane passes through origin and has a slope of $$\frac{1}{3}$$. Which of the following points lies on the line?

A. $$(2,1)$$

B. $$(4,1)$$

C. $$(9,3)$$

D. $$(6,3)$$

E. $$(1,3)$$

4- Which of the following is equivalent to $$3𝑛^2+2𝑛+6−2𝑛^2−4$$?

A. $$n+4n^2$$

B. $$n^2-3$$

C. $$n^2+2n+10$$

D. $$n+2$$

E. $$n-2$$

5- Solve for $$x: 4(x+1)=6(x-4)+20$$

A. 12

B. 6.5

C. 4

D. 2

E. 0

6- If $$𝑥≠−4$$ and $$𝑥≠5$$, which of the following is equivalent to $$\frac{1}{\frac{1}{𝑥−5}+\frac{1}{𝑥+4}}$$?

A. $$\frac{(x-5)(x+4)}{(x-5)+(x+4)}$$

B. $$\frac{(x+4)+(x-5)}{(x+4)(x-5)}$$

C. $$\frac{(x+4)(x-5)}{(x+4)-(x+5)}$$

D. $$\frac{(x+4)+(x-5)}{(x+4)-(x-5)}$$

E. $$\frac{(x-4)+(x-5)}{(x+4)-(x-5)}$$

7- $$y < c-x , y > x+b$$
In the $$xy$$-plane, consider (0,0) is a solution to the system of inequalities above, which of the following relationships between c and b must be true?

A. $$c < b$$

B. $$c>b$$

C. $$c=b$$

D. $$c= b+ c$$

E. $$c= b-x$$

8- What is the value of $$x$$ in the following equation? $$3x+10=46$$

A. 4

B. 7

C. 10

D. 12

E. 16

9- Calculate $$𝑓(5)$$ for the following function $$𝑓$$.
$$𝑓(𝑥)=𝑥^2−3𝑥$$

A. 5

B. 10

C. 15

D. 20

E. 25

10- John buys a pepper plant that is 5 inches tall. With regular watering the plant grows 3 inches a year. Writing John’s plant’s height as a function of time, what does the $$𝑦$$−intercept represent?

A. The $$𝑦$$-intercept represents the rate of grows of the plant which is 5 inches

B. The $$𝑦$$-intercept represents the starting height of 5 inches

C. The $$𝑦$$-intercept represents the rate of growth of plant which is 3 inches per year

D. The $$𝑦$$-intercept is always zero

E. There is no $$𝑦$$-intercept

11- If $$\frac{4}{x}=\frac{12}{x-8}$$ what is the value of $$\frac{x}{2}$$?

A. 1

B. 3

C. $$-2$$

D. 2

E. 0

12- Which of the following is an equation of a circle in the $$xy$$-plane with center $$(-1,2)$$ and a radius with endpoint $$(2,6)$$?

A. $$(x+1)^2+(y-2)^2=5$$

B. $$2x^2+(y+2)^2=25$$

C. $$(x-1)^2+(y-2)^2=5$$

D. $$(x+1)^2+(y-2)^2=25$$

E. $$(x+1)^2+(y-2)^2=125$$

13- Given a right triangle $$∆$$ABC whose $$∠B=90^\circ$$,sin⁡ C$$=\frac{8}{17}$$, find cos⁡ A?

A. 1

B. $$\frac{8}{15}$$

C. $$\frac{8}{17}$$

D. $$\frac{15}{17}$$

E. $$\frac{1}{8}$$

14- The circle graph below shows all Mr. Green’s expenses for last month. If he spent $660 on his car, how much did he spend for his rent? $$\img{https://appmanager.effortlessmath.com/public/images/questions/66lll.png }$$ A.$700

B. $740 C.$810

D. $910 E.$960

15- The Jackson Library is ordering some bookshelves. If $$x$$ is the number of bookshelves the library wants to order, which each costs $200 and there is a one-time delivery charge of$600, which of the following represents the total cost, in dollar, per bookshelf?

A. $$\frac{200x+600}{x}$$

B. $$\frac{200x+600}{200}$$

C. $$200+600x$$

D. $$200x+600$$

E. $$600x+600$$

16- A function $$g(3)=5$$ and $$g(5)=4$$. A function $$f(5)=2$$ and $$f(4)=6$$. What is the value of $$f(g(5))$$?

A. 5

B. 6

C. 7

D. 8

E. 10

17- What is the area of the following equilateral triangle if the side 𝐴𝐵 = 12 cm?
$$\img{https://appmanager.effortlessmath.com/public/images/questions/ttt.png }$$

A. $$36\sqrt{3}$$ cm$$^2$$

B. $$18\sqrt{3}$$ cm$$^2$$

C. $$6\sqrt{3}$$ cm$$^2$$

D. 8 cm$$^2$$

E. 6 cm$$^2$$

18- If $$x∎y=\sqrt{x^2+y}$$, what is the value of $$6∎28$$?

A. $$\sqrt{168}$$

B. 10

C. 8

D. 6

E. 4

19- $$x^2+y^2+8x-2y=1$$
The equation of a circle in the $$xy$$-plane is shown above. What is the radius of the circle?

A. 24

B. 18

C. $$\sqrt{18}$$

D. $$\sqrt{10}$$

E. $$\sqrt{8}$$

20- What is the value of $$y$$ in the following system of equation?
$$3x-4y= -20$$
$$-x+2y= 10$$

A. $$-1$$

B. $$-2$$

C. 1

D. 4

E. 5

## Best CLEP College Algebra Math Prep Resource for 2021

1- C
Plugin the values of $$x$$ and $$y$$ provided in the choices into both equations. Let’s start with $$2x+2y=2$$:
A.$$(1,3) : 2x+2y=2→2+6≠2$$
B.$$(2,4): 2x+y=2→4+8≠2$$
C.$$(2,-1) :2x+2y=2→4+(-2)=2$$
D.$$(4,-6): 2x+2y=2→12+(-12)≠2$$
E.$$(1,-6): 2x+2y=2→2+(-12)≠2$$
Only choice C is correct.

2- A
If $$f(x)=3x+4(x+1)+2$$, then find $$f(4x)$$ by substituting $$4x$$ for every $$x$$ in the function. This gives: $$f(4x)=3 (4x)+ 4(4x+1)+2$$
It simplifies to: $$f(4x)=3 (4x)+4(4x+1)+2=12x+16x+4+2=28x+6$$

3- C
First, find the equation of the line. All lines through the origin are of the form $$y=mx$$, so the equation is $$y=\frac{1}{3} x$$. Of the given choices, only choice C (9,3), satisfies this equation:
$$y=\frac{1}{3} x→3=\frac{1}{3} (9)=3$$

4- C
$$(3n^2+2n+6)-(2n^2-4)$$. Add like terms together: $$3n^2-2n^2=n^2, 2n$$ doesn’t have like terms. $$6-(-4)=10$$, Combine these terms into one expression to find the answer: $$n^2+2n+10$$

5- C
Simplify and solve for $$x$$ in the equation. $$4(x+1)=6(x-4)+20, 4x+4= 6x-24+20, 4x+4=6x-4$$. Subtract $$4x$$ from both sides: $$4=2x-4$$, Add 4 to both sides: $$8=2x, 4=x$$

6- A
To rewrite $$\frac{1}{\frac{1}{x-5}+\frac{1}{x+4}}$$, first simplify $$\frac{1}{x-5}+\frac{1}{x+4}$$.
$$\frac{1}{x-5}+\frac{1}{x+4}=\frac{1(x+4)}{(x-5)(x+4)}+\frac{1(x-5)}{(x+4)(x-5)}=\frac{(x+4)+(x-5)}{(x+4)(x-5)}$$
Then: $$\frac{1}{\frac{1}{x-5}+\frac{1}{x+4}}=\frac{1}{\frac{(x+4)+(x-5)}{(x+4)(x-5)}}=\frac{(x-5)(x+4)}{(x-5)+(x+4)}$$. (Remember, $$\frac{1}{\frac{1}{x}}=x)$$
This result is equivalent to the expression in choice A.

7- B
Since (0,0) is a solution to the system of inequalities, substituting 0 for $$x$$ and 0 for $$y$$ in the given system must result in two true inequalities. After this substitution, $$y< c – x$$ becomes $$0x+b$$ becomes $$0>b$$. Hence, a is positive and b is negative.
Therefore, $$c>b$$.

8- D
$$3x+10=46→3x=46-10=36→x=\frac{36}{3}=12$$

9- B
The input value is 5. Then: $$x=5. f(x)=x^2-3x→ f(5)=5^2-3(5)=25-15=10$$

10- B
To solve this problem, first recall the equation of a line: $$y=mx+b$$
Where $$m=$$slope. $$y=y$$-intercept
Remember that slope is the rate of change that occurs in a function and that the y-intercept is the $$y$$ value corresponding to $$x=0$$.
Since the height of John’s plant is 5 inches tall when he gets it. Time (or $$x$$) is zero. The plant grows 3 inches per year. Therefore, the rate of change of the plant’s height is 3. The y-intercept represents the starting height of the plant which is 5 inches.

11- C
Multiplying each side of $$\frac{4}{x}=\frac{12}{x-8}$$ by $$x(x-8)$$ gives $$4(x-8)=12(x)$$, distributing the 4 over the values within the parentheses yields $$x-8=3x$$ or $$x=-4$$.
Therefore, the value of $$\frac{x}{2}=\frac{-4}{2}=-2$$.

12- D
The equation of a circle can be written as $$(x-h)^2+(y-k)^2=r^2$$
where (h,k) are the coordinates of the center of the circle and r is the radius of the circle. Since the coordinates of the center of the circle are $$(-1,2)$$, the equation is
$$(x+1)^2+(y-2)^2=r^2$$, where r is the radius. The radius of the circle is the distance from the center $$(-1,2)$$, to the given endpoint of a radius, (2,6). By the distance formula,
$$r^2=(2-(-1))^2+(6-2)^2=(3)^2+(4)^2=9+16=25$$
Therefore, an equation of the given circle is $$(x+1)^2+(y-2)^2=25$$

13- C
To solve for cos⁡A first identify what is known. The question states that $$∆$$ABC is a right triangle whose $$∠B=90^\circ$$ and sin⁡C$$=\frac{8}{17}$$.
It is important to recall that any triangle has a sum of interior angles that equals 180 degrees. Therefore, to calculate cos⁡A use the complimentary angles identify of trigonometric function. cos A=cos⁡(90$$-$$C), Then: cos⁡A=sin⁡C
For complementary angles, sin of one angle is equal to cos of the other angle. cos⁡ A$$=\frac{2}{3}$$

14- C
Let $$x$$ be all expenses, then $$\frac{22}{100} x=660 →x=\frac{100×660}{22}=3,000$$
Mr. Jones spent for his rent: $$\frac{ 27}{100}×3,000=810$$

15- A
The amount of money for $$x$$ bookshelf is: $$200x$$, Then, the total cost of all bookshelves is equal to: $$200x+600$$, The total cost, in dollar, per bookshelf is: $$\frac{Total \ cost}{number \ of \ items}=\frac{200x+600}{x}$$

16- B
It is given that g(5)=4. Therefore, to find the value of f(g(5)), then f(g(5))=f(4)=6

17- A
Area of the triangle is: $$\frac{1}{2}$$ AD$$×$$BC and AD is perpendicular to BC. Triangle ADC is a
(\30^\circ-60^\circ- 90^\circ\) right triangle. The relationship among all sides of right triangle $$30^\circ-60^\circ- 90^\circ$$ is provided in the following triangle: In this triangle, the opposite side of $$30^\circ$$ angle is half of the hypotenuse. And the opposite side of $$60^\circ$$ is opposite of $$30^\circ×\sqrt{3}$$
CD=6, then AD$$=6×\sqrt{3}$$
Area of the triangle ABC is: $$\frac{1}{2}$$ AD$$×$$BC $$= \frac{1}{2} 6\sqrt{3}×12=36\sqrt{3}$$
$$\img{https://appmanager.effortlessmath.com/public/images/questions/mmm.png }$$

18- C
$$6∎28=\sqrt{6^2+28}= \sqrt{36+28}=\sqrt{64}=8$$

19- C
The equation of a circle with center (h,k) and radius r is $$(x-h)^2+(y-k)^2=r^2$$. To put the equation $$x^2+y^2+8x-2y=1$$ in this form, complete the square as follows:
$$x^2+y^2+8x-2y=1, (x^2+8x)+(y^2-2y)=1$$
$$(x^2+8x+16)-16+(y^2-2y+1)-1=1, (x+4)^2+(y-1)^2=18$$
$$(x+4)^2+(y-1)^2=(\sqrt{18})^ 2$$
Therefore, the radius of the circle is $$\sqrt{18}$$.

20- E
Solve the system of equations by elimination method.
\cfrac{\begin{align} 3 x – 4 y = – 20 \\ – x + 2 y = 10 \end{align}}{}
Multiply the second equation by 3, then add it to the first equation.
\cfrac{\begin{align} 3 x – 4 y = – 20 \\ 3(- x + 2 y = 10) \end{align}}{} ⇒
\cfrac{\begin{align} 3 x – 4 y = – 20 \\ -3 x + 6 y = 30) \end{align}}{} ⇒add the equations $$2𝑦=10⇒𝑦=5$$

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