Functions in Context

What does the y-intercept mean given the context?

• When a book is 10 days late, the late fee is $2.

• When a book is 2 days late, the late fee is $10

• When a book isn't late yet, there is no late fee.

• When a book is 8 days late, the late fee is $40 or $50.

What is the y-intercept?

The graph shows the height (cm) of a candle as it burns, what does the y-intercept mean?

• Candle starts at 9 cm.

• Candle start at 4.5 cm

• Candle starts at 0 cm.

• The candle ends at 5 cm

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

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $100 is earned for every 2 hours worked

• $500 is earned for every 8 hours worked

• $200 is earned for every 3 hours worked

What does the slope represent in this context?

• The number of eggs that fit in the basket

• The mass per egg

• The mass of the basket

• Amount of eggs per basket

What is the general trend of this line graph?

• The more you mow, the less money you make.

• You make the same amount of money regardless of how long you mow.

• The more you mow, the more money you make.

• Mowing is dangerous.

The commission that a sales representative makes can be modeled by the function C(x) = 4x - 10, where x is the number of items sold.  If the sales representative sells 30 items, how much commission will they earn? Type your answer WITHOUT units.

Mathematical Equivalence

ON

What is the rate of change for this graph?

What is the rate of change between these points? Simplify