Function Notation, Graphs and Story Problems

Given the graph of f(x), what does f(6) = 30 mean in context?

• When 6 books are sold, the store makes $30

• When 30 books are sold, the store makes $6

• When 6 books are sold, the store makes $36

• The store makes $5 per book.

Tags

CCSS.HSF.IF.B.4

What does f(1990)=214 mean in the context of the problem?

• In 1990 there were 214 million people with health insurance

• In 214, there were 1990 people with health insurance

• When there are 1990 people, the year is 214

• None of these

Tags

CCSS.HSF.IF.A.2

What is f(1)?

• 1

• 5

• 0

• 4

Tags

CCSS.HSF.IF.A.2

The graph models Craig’s trip to visit his friend in another state. In the course of his travels, he encountered both highway and city driving. What might have happened in the interval between B and C? (Check 2 that apply)

• He increased his speed

• He stopped at a rest stop for food and gas

• He turned around and went back home

• He was caught in stand still traffic

Tags

CCSS.HSF.IF.B.4

Given the function f(x) = 3x + 1, evaluate f(a + 2) :

• 7

• 3a + 5

• 3a + 7

• 3a + 2

Tags

CCSS.HSF.IF.A.2

• Not possible

• 5

• 3

• 8

Tags

CCSS.HSF.IF.A.2

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.

Tags

CCSS.8.F.A.1

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 this mapping a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

Is this table a function or not a function? 

• Function

• Not a Function

Tags

CCSS.8.F.A.1