Answer:
x-intercept (-3,0)
y-intercept (0,-9)
Step-by-step explanation:
The x-intercepts can be found by setting y to 0 and solving for x.
y=-3x-9
0=-3x-9
Add 9 on both sides:
9=-3x
Divide both sides by -3:
9/-3=x
-3=x
The x-intercept is (-3,0).
The y-intercepts can be found by setting x to 0 and solving for y.
y=-3x-9
y=-3(0)-9
y=0-9
y=-9
The y-intercept is (0,-9).
Answer:
Step-by-step explanation:
x-intercept is for y = 0.
y-intercept is for x = 0.
y = -3x - 9
x-intercept (put y = 0):
0 = -3x - 9 add 9 to both sides
9 = -3x divide both sides by (-3)
-3 = x → x = -3
y-intercept (put x = 0):
y = -3(0) - 9
y = 0 - 9
y = -9
