Suppose you want to install a new fence.

Question

Frank's Company quotes you a price to install a new fence given by a formula where P(f) is the dollars and f is the number of feet of fencing needed.

f P(f)
0 500+20.(0)=500
25 500+20.(25)=1000
50 500+20.(50)=1500
75 500+20.(75)=2000
100 500+20.(100)=2500

Write a function that models Frank's fencing Company quote.

Graph 1 and Graph 2

Answer 1

Clearly,

P(f) = 500+20f

There are lots of good graphing web sites.

Or, heck, you can get out the old graph paper and a pencil!!! Imagine!!