Question

If Charity has $500 this month and spends $40 each

Answer 1

Answer:

f (x) = -60x + 500

Step-by-step explanation:

After 1 month : 500 - 40 x 1

After 2 month:  500 - 40x 2

After 3  month: 500 - 40 x 3

After x month: 500 - 40x

Therfore: f (x) = -40x + 500.. xe[0,8]

                                                {500 - 40x > , 0 }

                                                                    x  ≤ 8