Question

at the same grocery store, amari buys a loaf of bread and some grapes. the graph shows the total cost of the purchase, y, as a function of the number of pounds of grapes, x. the total cost of 0 pounds of grapes and a loaf of bread is $4. the total cost of 2 pounds of grapes and a loaf of bread is $10. first, subtract to find the change in cost and change in pounds. the total cost increases by $? as the number of pounds increases by ?

Explanation:

Step1: Find change in cost

The cost when $x = 0$ is $y = 4$ and when $x=2$ is $y = 10$. Change in cost $\Delta y=10 - 4=6$.

Step2: Find change in pounds

The number of pounds changes from $x = 0$ to $x = 2$. Change in pounds $\Delta x=2 - 0=2$.

Answer:

The total cost increases by $\$6$ as the number of pounds increases by $2$.