function notation

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

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

Tags

CCSS.HSF.IF.A.2

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 the function look like once you substitute in a 1 to find f(1)?

• f(x) = 21+1

• f(1) = 2 (1) + 1

• f(1) = 2x (1) + 1

Tags

CCSS.HSF.IF.A.2

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

• 6

• -6

• 14

• -14

Tags

CCSS.HSF.IF.A.2

• 16

• 48

• -28

• 4

Tags

CCSS.HSF.IF.A.2

• -67

• 67

• 77

• -77

Tags

CCSS.HSF.IF.A.2

• -20

• 20

• -24

• 24

Tags

CCSS.HSF.IF.A.2

• 1

• -1

• 19

• -19

Tags

CCSS.HSF.IF.A.2

• -10

• -40

• 10

• 40

Tags

CCSS.HSF.IF.A.2