Answer:
Step-by-step explanation:
The x-intercept exists when y = 0; the coordinate takes on the form ( , 0)
The y-intercept exists when x = 0; the coordinate takes on the form (0, ).
We will fill in the blanks in a sec.
If the x-intercept exists when y = 0, then we fill in 0 for y and solve for x:
-3(0) - x = -9 so
-x = -9 and
x = 9
The coordinate is (9, 0) for the x-intercept.
If the y-intercept exists when x = 0, then we fill in 0 for x and solve for y:
-3y - 0 = -9 so
-3y = -9 and
y = 3
The coordinate is (0, 3) for the y-intercept.
