Question

Anna has several boxes of cookies to sell, and has 12 weeks to sell them all. After 5 weeks, she has 175 boxes left. After 12 weeks, she has none. Use the table provided to help you answer the questions below:

number of weeks number of boxes left
0
1
2
3
4
5 175
6
7
8
9
10
11
12 0
What is the rate of change of this situation?

What is the y-intercept?

Write the function rule in slope-intercept

Answer 1

0: 35 x 0 = 0

1: 35 x 1 = 35

2: 35 x 2 = 70

3: 35 x 3 = 105

4: 35 x 4 = 140

5: 35 x 5 = 175

6: 35 x 6 = 210

7: 35 x 7 = 245

8: 35 x 8 = 280

9: 35 x 9 = 315

10: 35 x 10 = 350

11: 35 x 11 = 385

12: 35 x 12 = 420

She had 420 boxes to sell in total in 12 weeks.

Explanation:

175/5 = 35