Function Equation

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

• y = 2x-3

• f = 2x - 3

• f(x) = 2x - 3

• Can't be written in function notation

Tags

CCSS.HSF.IF.A.2

Find f(2)

• 5

• 4

• 3

• 0

Tags

CCSS.HSF.IF.A.2

Is the relation a function? Why?

• Yes, because the x-value 11 has two y-values paired 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 paired with it.

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

Is the following graph a function? Explain.

• Yes, because no x-value repeats.

• Yes, because they are individual dots.

• No, because the x repeats.

• No, because it is not a line.

Two functions are given. f(x)=-x^2-8x+9 g(x)=-x+1 One value for x is -8, what is the other value for x given that f(x) = g(x)

Mathematical Equivalence

ON

Tags

CCSS.HSA.REI.C.7

The picture ​ (a)   a function because every ​x ​ (b)   point to exactly one y.

• shows

• does not show

• does

• does not

Tags

CCSS.8.F.A.1

Given the function, f, shown on the graph, what is the value of f(3)?

• 0

• 2

• 6

• 1

Tags

CCSS.HSF.IF.A.2

• Yes
• No

Tags

CCSS.8.F.A.1

• Yes
• No

Tags

CCSS.8.F.A.1

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

• -1

• 1

• 5

• -5

Tags

CCSS.HSF.IF.A.2