Slope Intercept in Real World

Luke goes to the fair with $50. Each ride costs $2. If an equation is written to show how much money Luke has at the end of the day, what is the slope and y-intercept?​ (a)  

• slope = 50; y-intercept = 2

• slope =25; y-intercept = 50

• slope = -2; y-intercept = 50

• slope = 25; y-intercept = 2

The table show how much water was in a swimming pool as it was being filled. If you were to use the data to make a graph, what is the slope of the line?

• 3

• 12

• 4

• 24

The graph shows the altitude of a car as a driver descends down a mountain. What is the meaning of the y-intercept?​

• the driver ascended 1500 ft. up the mountain at the end of the trip.

• the driver reached the base of the mountain after 6 hours

• the height at which the driver started was 1500 ft.

• the driver descended at 300 ft an hour

The graph represents the amount John pays for his cell service; a joining fee plus a charge for each minute he uses the phone. What does the y-intercept indicate?​ (a)  

• his initial/joining fee is $20

• his monthly fee is $0

• his rate per minute is $0.40

• his rate per minute is $0.20

Some students collected the data in the table. They will graph the data. What will the slope of the graph represent?​ (a)  

• the change in the average temperature per month

• the change in the average temperature per day

• the high temperature for the sampling period

• the range of the temps for the sampling period

• the number of months in the sampling period

Eva saw this graph in a fitness magazine. Which does the slope of the graph represent?​ (a)  

• calories burned per mile walked

• total calories burned

• total distance walked

• miles walked per hour

A taxi service charges a $10 flat fee plus $2 per mile traveled. If an equation is written to calculate the total cost of a taxi ride, what is the y-intercept?

• 10

• 2

• 5

• 12

The shipping fee to send a package via US Priority Mail costs $6 per pound and includes a $5 insurance fee. If an equation is written to calculate the shipping charge, what is the slope?​ (a)  

• 6

• 6/5

• 5

• 5/6

Monica was taking a bus trip to see her aunt.  For her to ride 50 miles it cost her $40.  For her to ride 250 miles the bus trip would cost her $100.  Find the rate of change in dollars per mile.  Write an equation in slope-intercept form to model this situation.

• y = 3/10x + 40

• y = 2.5x + 25

• y = 3/10x + 30

• y = 3/10x + 25

Jackson started with $800 in his savings account, but has to pay $30 a month for his electricity bill. Write an equation that relates his savings, y, to the amount of months, x.

• y = -30x + 800

• y = 30x - 800

• y = -30x

• y = 12x - 30