1 Cumulative Test Prep

Vocabulary Builder

As you solve test items, you must understand the meanings of mathematical terms. Select the correct term to complete each sentence.

1. An algebraic (expression, equation) is a mathematical sentence with an equal sign.
2. A (coefficient, constant) is a numerical factor of a term.
3. The (exponent, base) of a power tells how many times a number is used as a factor.
4. To (simplify, evaluate) an algebraic expression, you substitute a given number for each variable.
5. A(n) (rational, irrational) number is any number that you can write in the form a b eh over b , where a and b are integers, and b ± 0 . b plus minus 0 .

Multiple Choice

Read each question. Then write the letter of the correct answer on your paper.

1. If x = − 2 , x equals negative 2 comma  y = 3, and z = 4, which expression has the greatest value?
   1. z ( x − y ) z open x minus y close
   2. z ( x − y ) 2 − x z . open x minus y close squared . minus x
   3. z ( x − y ) 3 + x z open x minus y close cubed . plus x
   4. z x − x y z over x , minus x y
2. What is the solution of the equation 7d + 7 = 14?
   6. − 3 negative 3
   7. − 1 negative 1
   8. 1
   9. 3
3. What is the value of the expression 8 ( − 9 ) − 6 ( − 3 ) ? 8 open negative 9 close minus 6 open negative 3 close question mark
   1. − 90 negative 90
   2. − 54 negative 54
   3. 54
   4. 90

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