Question

The graph shows the prices of different numbers of bushels of corn at a store in the current year. The table shows the prices of different numbers of bushels of corn at the same store for the previous year.

Part A: Describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. (5 points)
Part B: How many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? Show your work. (5 points)

Answer 1

Part a you find the rate of change by finding the slope of the line the value is 8 it is (y2-y1)/(x2-x1) 48-24/6-3=24/3=8

Part b current year is 8 dollars a bushel and previous year is 7 dollars

Explanation:

Answer 2

#1

Take any two points

• (3,24)
• (6,48)

Slope

• m=48-24/6-3
• m=24/3
• m=8

#2

• (3,21)
• (6,42)

Slope:-

• m=42-21/6-3
• m=21/3
• m=7

Difference

• 1$