Question

Could anyone explain please?

Answer 1

Answer: linear function is 25x + 20

After 8 weeks he has saved 25(8)+20 which is 200, so he saved $200 after 8 weeks.

Step-by-step explanation:

Ok so we say 25x because x is any amount of weeks he has saved for and because he had a head start of $20, we add 20 when calculating after any amount of weeks( because even if we know he saved 25x after x weeks we have to add the 20 dollars he also started with)

I hope this helps:)

Answer 2

Answer:

a. 20 + 25x

where x is the no. of weeks

b. The amount saved after 8 weeks = 20 + 25 (8)

= 20 + 200

= 220

Therefore, $220 will be saved after 8 weeks.