Answer: y-intercept is 18, x-intercept is -6
Explanation:
When X is 0, it is the y-intercept
When Y is 0, it is the x-intercept
1) Substitute x for 0 to find the y-intercept
y-3(0)=18
y = 18
y-intercept is 18
2) Substitute y for 0 to find the x-intercept
(0)-3x=18
-3x=18
x=-6
x-intercept is -6