May 10 Review of Functions

f(x) = 3x - 8 Which ordered pair is a solution

• (7, 5)

• (10, 25)

• (5, 7)

• (6, 12)

f(x) = 5x - 10 Which ordered pair is a solution

• (5, 12)

• (5, 15)

• (5, 7)

• (5, 3)

(2, 8), (9, 15), (10, 16) Is this a relation, function or both.

• Both

• Relation only

• Function but not a relation

A set or collection of Ordered Pairs is a relation. T or F

• T

• F

• Neither

A special Relation called a function is where each input has 1 and only 1 output. T or F

• T

• F

All Functions are Relations

• True

• False

All Relations are Function.

• T

• F

(2, 8), (9, 15), (10, 16) What is the function for these Ordered Pairs.

• f(x) = 4x + 6

• f(x) = x + 6

• f(x) = 3x + 2

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

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5
• x = 5
• x = -50
• x = 30

Tags

CCSS.HSF.IF.A.2