U3 Math Review: Functions

Which set represents integers that are at least 7 and less than 13?

• 7, 8, 9, 10, 11, 12

• 8, 9, 10, 11, 12

• 7, 8, 9, 10, 11, 12, 13

• 8, 9, 10, 11, 12, 13

Tags

CCSS.7.NS.A.1C

If f(x) = 2x² - 3, what is f(-3)?

• 15

• 21

• 39

• 18

Tags

CCSS.HSF.IF.A.2

Which interval represents the solution to 2 ≤ 3y < 4?

• [⅔, 1⅓)

• (⅔, ½]

• [⅔, ¾]

• (⅔, ⅓)

What is the zero of the function f(x) = 2x + 14?

• x = 6

• x = -2

• x = 14

• x = -7

Tags

CCSS.HSF-IF.C.7D

Which of the following is not a function?

• {(3,1), (0,5), (2,7), (5,1)}

• {(2,4), (1,0), (1,7), (2,-4)}

• {(3,10), (2,5), (1,2), (2,5)}

• {(4,16), (5,25), (7,49), (10,100)}

Tags

CCSS.8.F.A.1

Maya sells lemonade for $1.50 per cup and starts with $4.50 in change. Write a function to represent her total money m as a function of cups sold c.

Tags

CCSS.HSF-BF.A.1A

A rocket's height h (in feet) after t seconds is given by h(t) = 6t². How much higher is the rocket after 5 seconds compared to 3 seconds?

The temperature T (in °F) of a room after t minutes of heating is given by T(t) = 56 + 1.8t - 0.036t². What is the average rate of change in temperature between 5 and 10 minutes?

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

A function f(x) has the following values: f(-2) = 5, f(0) = 1, and f(3) = -4. Calculate the average rate of change between x = -2 and x = 3.

Mathematical Equivalence

ON

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

The cost C (in dollars) of producing x items is given by C(x) = 0.5x² + 2x + 100. What is the cost of producing 10 items?

Tags

CCSS.HSF.IF.A.2