Function Notation

How would you write y = 2x - 3 in function notation?

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

Tags

TEKS.MATH.A.12B

How do you read f(x)?

• f x

• f of x

• f parenthesis x

• f with an x inside parenthesis

Tags

CCSS.HSF.IF.A.1

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

Tags

CCSS.HSF.IF.A.2

If f(x) = 2x + 1, what would be your first step to find f(1)?

• Plug a 1 in for all the x's

• Set the function equal to 1

• Only plug a 1 into the left side

• Only plug a 1 into the right side

Tags

TEKS.MATH.A.12B

If f(x) = -3x - 8, find f(-1).

• f(-1) = 5

• f(-1) = -5

• f(-1) = -12

• f(-1) = -10

Tags

CCSS.HSF.IF.A.2

If f(x) = 6x - 9, find f(4).

• (4, 1)

• (4, 33)

• (4, 15)

• (4, -7)

Tags

CCSS.HSF.IF.A.2

Find f(10) if f(x)= 10x - 100.

• f(10) = 200

• f(10) = 0

• f(10) = -100

• f(10) = -99

Tags

CCSS.HSF.IF.A.2

If f(x) = -4x - 5

what is f(1)?

• 9

• -7

• -9

• -10

Tags

CCSS.HSF.IF.A.2

Given h(x) = -9x +5, find h(8). 

• h(8) = -360
• h(8) = -67

Tags

CCSS.HSF.IF.A.2

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

• f(-1) = -20
• f(-1) = -24

Tags

CCSS.HSF.IF.A.2