Question 46890
What are the x and y-intercepts of 3x+2y=21?
Plug-in x=0 and solve for y. This will give you the y-intercept.
Plug-in y=0 and solve for x.  This will give you the x-intercept.
.
Y-intercept:
3x+2y=21
3(0)+2y=21
2y=21
y=21/2
(0, 21/2)
.
x-intercept:
3x+2(0)=21
3x=21
x=7
(7, 0)