Eighth Grade Math Quiz

What is the output when the input is 6 using the function rule: divide by four, then add two?

• 2

• 3

• 4

• 3.5

If the input is -1, what is the output according to the rule: write 1 if odd, 0 if even?

• 0

• 1

• 2

• -1

How much does one pack of test tubes cost if a set of beakers costs $19?

• $23

• $19

• $15

• $11

What is the equation for the cost of test tubes in terms of beakers if test tubes cost $4 less?

• t = 4b

• t = b - 4

• t = b + 4

• t = b/4

What is the value of b if 8t + 12b = 348 and t = b - 4?

• 19

• 15

• 21

• 17

What is the value of x in the system of equations: y = x - 4 and y = 6x - 10?

• 10/6

• 6/5

• 1

• 5/6

What is the value of y when x = 6/5 in the equation y = x - 4?

• 14/5

• 4/5

• -4/5

• -14/5

For what value of x do the expressions 2x + 3 and 3x - 6 have the same value?

• 9

• 8

• 7

• 6

What is the result of substituting x = 9 into the expression 2x + 3?

• 18

• 21

• 24

• 27

What is the result of substituting x = 9 into the expression 3x - 6?

• 30

• 27

• 24

• 21