FUNCTION-ing in Math8E

Is it a function?

• It IS a function.

• It IS NOT a function

Tags

CCSS.8.F.A.1

Is it a function?

• It IS a function.

• It IS NOT a function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Is it a function?

• It IS a function.

• It IS NOT a function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Level 2 If my function rule is 4x, what is the OUTPUT if the input is 5?

• 45

• 54

• 9

• 20

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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)

Tags

CCSS.8.F.A.1

Is the graph pictured a function?

• Yes
• No

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What test do we use to see if a relation is a function?

• Horizontal Line Test
• The Line Test
• The Vertical Line Test
• Just look at it

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

• -1
• 1
• 5
• -5

Tags

CCSS.HSF.IF.A.2

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

• 7
• -2
• -9
• -10

Tags

CCSS.HSF.IF.A.2