Function Notation Warm Up

A relation where every input in matches with exactly one output is called what?

• Relation

• Linear

• Exponential

• Function

Is this table a function or not a function? 

• Function

• Not a Function

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.

The function c(m) = 1.45m + 3.50 represents the cost of a taxi for m miles.
What does c(7) represent?

• cost of $7 to ride the taxi

• cost to ride 7 miles

• minimum distance to ride a taxi

• minimum cost of a taxi

The function h(t) represents the height in inches of a plant after t weeks. What does the notation h(4) = 5 mean?

• After 5 week the plant is 4 inches tall

• The plant grows at a rate of 5/4 inch per week

• After 4 weeks the plant is 5 inches tall

• The plant grows at a rate of 1 inch per week

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5

• x = 5

• x = -50

• x = 30

If f(x) = x - 5, what is the value of x when f(x) = 15?

• 20

• 10

• 5

• 0

What does f(-4) equal?
f(-4) = -2x - 8

• 8

• -4

• -16

• 0

f(x) is the same thing as ______.

• y

• x

• input

• an equation

_{Using the graph, what does f(8) equal?}

• 8

• 2

• 1

• 0