Functions, Domain, Range, and Function Operations

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

• Function
• Not a Function

Is the relation{(<,>),(^,-),(+,=),(&,%)} a function?

• yes, since no first element is repeated
• yes, because there are 4 ordered pairs
• no, because functions must have numbers
• no, because the"&" isn't a math symbol

What is the domain of the graph?

• x ≥ -5

• x ≤ 5

• -5 ≤ x ≤ 5

• -5 ≤ x ≤ 9

• All real numbers

What is the range of the graph?

• y ≥ -5

• y ≤ 5

• -5 ≤ y ≤ 5

• -5 ≤ y ≤ 9

What is the domain of the graph?

• x ≥ -6

• -7 ≤ x ≤ 3

• -8 ≤ x ≤ 4

• x ≤ -6

• All real numbers

What is the range of the graph?

• y ≥ -6

• -7 ≤ y ≤ 3

• -8 ≤ y ≤ 4

• y ≤ -6

• All real numbers

When f(x) = 9 - 3x and g(x) = 5x - 7

find f(x) + g(x).

Mathematical Equivalence

ON

When f(x) = x² + 9 and g(x) = x - 9,

find f(x) - g(x).

Mathematical Equivalence

ON

Complete the operation and evaluate.

Mathematical Equivalence

ON