Evaluate Function Notations Easy

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

• plug a 1 in for all the x's

• only plug a 1 into the left side

• set the function equal to 1

• only plug a 1 into the right side

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

• let x=2

• let y=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(x)=2x(1)+1

• f(x)=2(1)+1

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

• 2,4

• That is the only way to write it.

• (2,4)

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

• f(-1)=5

• f(-1)= -12

• f(-1)= -5

• f(-1)= -10

What is function notation?

• adding functions.

• the way an equation (function) is written.

• I wasn't listening.

• pass.

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

• 6

• 7

• 8

• 9

Evaluate f(X)=3x+1 when x=2

• 7

• 9

• 11

• 13

Which is the set of all y-values or the outputs?

• Domain

• Range

• Relation

• Function

What is the range of the table?

• <-4, 0, 1, 3>

• <-4, -2, 0, 1, 2, 3>

• <-2, 0, 2, 3>

• <(0,0), (2, -4), (3, 3), (-2,1)>