Proportional relationships and Unit rate -Slope,

• A

• C

Joshua saves $50 every 2 weeks he works. The total amount of money Joshua saves is proportional to the number of weeks he works.

Which of the following graphs shows the amount of money, , Joshua saves when he works for weeks?

• 
• 
• 
• 

Amber recorded the prices of candy, based on weight, from two different stores in the table and graph below.

Which company has the cheaper price per pound?

• There is not enough information to determine the price per pound.

• Sam's Candy Shoppe has the cheaper price per pound.

• Carmine's Candy has the cheaper price per pound.

• Both candy stores have the same price per pound.

There are two mechanics who work on cars. For each mechanic, the relationship between , the number of hours worked, and y , the total cost, in dollars, is described below.

The equation y=36x represents the total cost charged by Mechanic A for the number of hours worked.

The graph shown below represents the total cost charged by Mechanic B for the number of hours worked. 

 Based on the information, which statement is true?

• Mechanic A charges $8.00 more per hour than Mechanic B.

• Mechanic A charges $8.00 more per hour than Mechanic B.

• Mechanic A charges $8.00 more per hour than Mechanic B.

Examine the graph below. Calculate the slope.

Find the slope of the line in the graph below.   (3,4)  (4,8)

(a)