QUIZ 3, FUNCTIONS VERSION B (8F)

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Given

f(x)= 2x² + 5x - 17, find f(-1).

• f(-1) = -20

• f(-1) = -24

• f(-1) = 20

• f(-1) = 24

What is the Domain?

• {-3, -1, 1, 3, 5, 7, 9}
• {-3, -2, -1, 0, 1, 2, 3}
• -3 ≤ x ≤ 3
• -3 ≤ x ≤ 9

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Which is the Rate of change of the function shown in the graph?

• -3/4

• -3/2

• -2/3

• 3

• 3/2

Given f(x) = 3x - 3, find the value of x so that f(x) = -15.

• x = -4

• x = 4

• x = 27

• x = -6

What is the range of the function f (x ) = x ² - 3 when the domain is {-2, -1, 0, 2, 7 }?

• {-3, -2, 1, 46}

• {-7, -3, 46, -4,}

• {-7, -3, -1, 4, -52}

• {1, 3, -7, 46, -3}

• F

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