CFA Review

A relation is a function if each Input has exactly One Output.

• True

• False

• Function
• Not a Function

• Function
• Not a Function

Is this graph a function or not a function?

• Function

• Not a Function

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

• f(-1) = -20
• f(-1) = -24

What is f(1)?

• 1
• 5
• 0
• 4

What is the RANGE of this graph?

• -7 < x < 5

• -7 ≤ y < 5

• -3 < x < 1

• -3 ≤ y < 1

What is the DOMAIN of this graph?

• -4 ≤ x ≤ 3

• -1 ≤ x ≤ 4

• 4 < x < 3

• -1 < x < 4

What is the domain of the graph?

• {-4, 0, 2, 4}
• {-5, -4, -3, -1}
• {-5, -4, -3, -1, 0, 2, 4}
• All real numbers

What is the range?

• {-2,2,5}
• {1,3,5,6}
• all real numbers 
• -2<y<5