We can start this equation off by noticing the fact that this is a linear equation, which we can write in the form of: [tex]mx+b[/tex]. We can plug in our x values and y values given. I am going to start on the second line:
We plug in the given point: [tex](0,-3.2)[/tex].
[tex]-3.2=m(0)+b\\-3.2=b[/tex]
We can also plug in the point [tex](4,0)[/tex] to get:
[tex]0 = m(4) -3.2[/tex]
We get [tex]m = 0.8[/tex]
Therefore, our equation for the SECOND line is:
[tex]y = 0.8m - 3.2[/tex]
Hope that this helps you do the first line.
