Interpreting Slope and Y Intercept in Context

Johnny has to pay $15 for a large pizza and 1.50 for each topping.  What is the meaning of the y-intercept?

• It cost 1.50 per topping

• It cost 1.50 for unlimited toppings

• It cost $15 for a large pizza

• It cost $15 for a large pizza with no toppings

A holiday meal costs $12.50 a person plus a delivery fee of $30.  What is the meaning of the y-intercept?

• $30 delivery fee

• costs $12.50 per person

The value, v, of an antique car after t years is represented by the equation below. v = 2,000t + $12,000 What does the slope in the equation represent?

• The car decreases in value $2,000 per year.

• The car increases in value $2,000 per year.

• The car's original value is $2,000.

• The car increases in value $1 per 2,000 years.

The on-call nurse works x hours and charges her patients y dollars for her in-home services based on the equation y = 50x + 25. What is the slope in the equation?

• 25 dollars per hour

• 25 hours per dollar

• 50 dollars per hour

• 50 hours per dollar

What is the y-intercept for the scatter plot shown?

• (0,0)

• (10,100)

• (60,500)

• (100,0)

For the graph shown, which two statements are a correct way to interpret the y-intercept?

• The calories started at 0.

• The initial time was 0 minutes.

• The initial calories were 0.

• The exercise log started with 0 minutes.

What is the slope of the graph shown?
Use the points (0,0) and (60,500) to determine the slope.

Check both the original AND reduced answer.

What does the slope mean in the context of the situation graphed?

• You burn 500 calories every 60 minutes of exercise.

• You eat 500 calories when you eat out 60 times.

• You burn 100 calories every 10 minutes of exercise.

• You should not exercise.

What is the y-intercept for the given scatter plot?

• (0,900)

• (900,0)

• (2001, 400)

• (1995, 900)

Check the two ways you could write the slope for the graph shown.

Use (1995, 800) and (2001, 400) as two good points.

• -400/6

• 400/6

• -200/3

• 200/3