Question 123157
<pre>
Given both intercepts, you have two points,

if the y-intercept = -3, then you know that one point on the line is (0,-3)


if the x-intercept =  5, then you konw that the other point is (5,0)


Now all you need is the point slope form of the line:


{{{y-y[1]=((y[1]-y[2])/(x[1]-x[2]))(x-x[1])}}}


All you have to do is decide which point will be 1 and which will be 2 (it
doesn't matter which is which as long as you are consistent), make
the substitutions, and do the arithmetic.  To put your result into
slope-intercept form, solve the resulting equation for y.

I'll let you do the substitutions and the arithmetic.