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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. math exams: CLEP College Algebra Practice Questions - 8 & Answer Key

Monday, August 1, 2011

CLEP College Algebra Practice Questions - 8 & Answer Key

  1. If $\frac{1}{2}$ of a number is 3, what is $\frac{1}{3}$ of the number?

    1. $1$
    2. $2 $
    3. $ 3$
    4. $ 6$
    5. $ 8$

  2. If $x=-1$, then $x^{5}+x^{4}+x^{3}+x^{2}-5=$

    1. $-10$
    2. $-6 $
    3. $-5$
    4. $-3$
    5. $-1$

  3. If $f(x)=2^{x}+7x$, then $f(4)=$

    1. $24$
    2. $ 36$
    3. $44 $
    4. $54 $
    5. $64 $

  4. If $x-3=y$, then $(y-x)^{3}=$

    1. $27$
    2. $54 $
    3. $ -54$
    4. $ -27$
    5. $ 81$

  5. If $a>b$, and $\frac{a}{b}>0$, which of the following is true?

    1. $a>0$
    2. $b>0$
    3. $ab>0$

    1. I only
    2. II only
    3. III only
    4. I and II only
    5. I and III only

  6. Which of the following is equal to $(\frac{x^{-7}y^{-5}}{x^{-3}y^{3}})^{-2}$

    1. $x^{8}y^{16}$
    2. $\frac{x^{8}}{y^{16}} $
    3. $\frac{y^{16}}{x^{8}} $
    4. $x^{4}y^{8}$
    5. $x^{8}y^{8}$


  7. What is the slope of the line passing through the points (-1,7) and (3,5)?

    1. $\frac{1}{2}$
    2. $-2$
    3. $-\frac{1}{2} $
    4. $1$
    5. $2$

  8. The symbol $\otimes$ represents a binary operation defined as $a \otimes b=3^{a}+2^{b}$, what is the value of $(-2)\otimes (-3)$

    1. $-\frac{17}{72}$
    2. $\frac{72}{17} $
    3. $-72 $
    4. $ 72$
    5. $ \frac{17}{72}$

  9. If $\sqrt{\frac{49}{x}}=\frac{7}{3}$

    1. $6$
    2. $9$
    3. $25$
    4. $49$
    5. $147$

  10. A bike that originally sold for $150 \$$ was on sale for $120 \$$. What was the rate of discount?

    1. $15 \%$
    2. $21 \%$
    3. $20 \%$
    4. $25 \% $
    5. $30 \% $

    Answer Key
    1 B
    2 C
    3 C
    4 D
    5 C
    6 A
    7 C
    8 E
    9 B
    10 C

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