Answer
$y = \frac{15}{2}x$ -$\frac{15}{2}$
Work Step by Step
Two points clearly on the line are (1,0) and (3,15). By going from one point to the other, we see that we move up 15 units and to the right 2 units, giving us a rise/run slope of m= $\frac{15}{2}$.
We can use one of these points to plug into y=mx+b to find b:
y=mx+b
0=$\frac{15}{2}$(1)+b
0=$\frac{15}{2}$+b
$-\frac{15}{2}$ = b
And so our line is $y = \frac{15}{2}x$ -$\frac{15}{2}$.
