Relation, Functions and 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

How do you read f(x)?

• f x

• f of x

• f parenthesis x

• f with an x inside parenthesis

Tags

CCSS.8.F.A.1

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, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

Tags

CCSS.HSF.IF.A.2

If I know that f(2) = 4, what is another way I can write my answer?

• 2,4

• (2, 4)

• That is the only way to write it.

Tags

CCSS.HSF.IF.A.2

g(x) = 3x + 1
g(2) = _______

• 6
• 7
• 8
• 9

Tags

CCSS.HSF.IF.A.2

• 1.5

• 5

• 3

• 8

Tags

CCSS.HSF.IF.A.2

• Not possible

• 5

• 3

• 8

• 4

• 3.5

• 2

• 0

Tags

CCSS.HSF.IF.A.2

• x=3

• x= 0.5

• x= -4.5 and 0.5

• x=0