To find the x and y-intercept you plug in zero for the corresponding value that you are looking for. For example, if you are looking for x, plug 0 in for y.
To solve x-intercept: To solve y-intercept:
0=-2x-3 add 3 to other side y=-2(0)-3 substitute 0 for x
3= -2x divide 3 by -2 to isolate x y= 0-3
3/-2 = x (3/-2 , 0) is your x intercept y=-3 ( 0,3) is your y-intercept.
I hope this helps...