Question

James is participating in a 3-mile walk to raise money for a charity. He has received $300 in fixed pledges and raises $13 extra for every mile he walks. Use a point-slope equation to find the amount he will raise if he completes the walk.

Answer 1

Answer: $339

Explanation:

Given

The total length of the journey is 10 miles

fixed pledges are $300

variable pledges are $13 per mile

Point slope equation form is

`\Rightarrow y=mx+c`

Here the total charge corresponds to y and miles walked corresponds to x

So, we can write

`T=13* m+300`

where,

`T=\text{Total charge}\\m=\text{miles walked}`

for 3 miles distance

`\Rightarrow T=3* 13+300=\$339`