Lin opened a lemonade stand during the summer. She noticed that she sold more lemonade on warmer days.

For each day she sold lemonade, she plotted the point

(t, c), where t represents high temperature and c

represents cups of lemonade sold.

b. A computer program found that the line c= 2t - 89

is a good fit for the data. Use this equation to predict

how many cups of lemonade Lin might sell on a day

when the high temperature is 74 degrees.

c. the high temp this Sunday is expected to be 5 degrees warmer that the high temp this Saturday. using the line c = 2t - 89 how many more cups of lemonade should lin expect to sell on Sunday than Saturday? explain or show your reasoning