8.3 LT Post Assessment

Evaluate f(-2) if f(x) = x+3

• -1
• 1
• 5
• -5

For the function f(x) = -3(x-1) find f(0).

• 0
• -3
• 3
• -1

Evaluate f(-2) if f(x) = x²+ 3.

• -1
• 1
• 7
• -7

Given g(x) =
 4x - 7, find g(-9). 

• g(-9) = 29
• g(-9) = -43

Given f(x) =
2x² + 5x - 17, find f(-1). 

• f(-1) = -20
• f(-1) = -24

Given h(x) =
-x²+3x, find h(5). 

• h(5) = 40
• h(5) = -10

Given f(x) = x² - 7x, find f(8).  

• f(8) = 8 
• f(8) = -3584

If f(x) = -4x - 5 and
g(x) = 3 - x,
what is g(-4) + f(1)?

• 7
• -2
• -9
• -10

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.

Tags

CCSS.8.F.A.1

Is this mapping a function or not a function? 

• Function
• Not a Function 

Tags

CCSS.8.F.A.1