Question

A school club is raising money for a trip, and needs to reach $10,000. Their fundraising progress

is modeled by the function y = 435 + 1200x, where is measured in weeks.

Answer 1

8 weeks

Explanation:

Function is

y = 435 + 1200x

This can be re-written as

435 + 1200x = y

where y = money raised and x = number of weeks required

Given y = 10,000

we have

435 + 1200x = 10000

1200x = 10000-435 = 9,565

x = 9565/1200 = 7.97 weeks or 8 weeks rounded up