7 Cumulative Test Prep

Vocabulary Builder

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

1. The values of the (independent, dependent) variable are the output values of the function.
2. The (base, exponent) of a power is the number that is multiplied repeatedly.
3. A number in (scientific, standard) notation is a shorthand way to write numbers using powers of 10.
4. The (slope, y-intercept) of a line is the ratio of the vertical change to the horizontal change.
5. A system of two equations has exactly one solution if the lines are (parallel, intersecting) lines.

Multiple Choice

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

1. Which expression is equivalent to ( j j k k ) ( j k k j to the th , k to the th , close open j , k to the th )?

   1. j 2 k 2 j squared , k squared
   2. j 3 k 5 j cubed , k to the fifth
   3. j 2 k 6 j squared , k to the sixth
   4. j 3 k 6 j cubed , k to the sixth

2. Which equation has (2, − 6 negative 6 ) and ( − 3 , negative 3 comma  4) as solutions?

   6. y = 1 2 x − 7 y equals , 1 half , x minus 7
   7. y = 2 x − 10 y equals 2 x minus 10
   8. y = − 1 2 x − 5 y equals negative , 1 half , x minus 5
   9. y = − 2 x − 2 y equals negative 2 x minus 2

3. Which equation best represents the statement two more than twice a number is the number tripled?

   1. 2 + n = 3 n 2 plus n equals 3 n
   2. 2 n + 2 = 3 n 2 n plus 2 equals 3 n
   3. 2 ( 2 + n ) = 3 n 2 open 2 plus n close equals 3 n
   4. 2 n + 2 = 3 + n 2 n plus 2 equals 3 plus n

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