Question

Write an equation to find how many miles sara will fly t in any number of months m

Answer 1

From the graph:

`\begin{gathered} (x1,y1)=(1,500) \\ (x2,y2)=(4,2000) \\ m=(y2-y1)/(x2-x1)=(2000-500)/(4-1)=(1500)/(3)=500 \end{gathered}`

Using the point-slope equation:

`\begin{gathered} y-y1=m(x-x1) \\ y-500=500(x-1) \\ y=500x \\ so\colon \\ t=500m \end{gathered}`