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2 years ago

What are the x- and y-intercepts of y=-3x -9?

Mathematics

2 answers:

Lady_Fox [76]2 years ago

8 0

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).

NISA [10]2 years ago

8 0

Answer:

<h2>x-intercept: x = -3 → (-3, 0)</h2><h2>y-intercept: y = -9 → (0, -9)</h2>

Step-by-step explanation:

x-intercept is for y = 0.

y-intercept is for x = 0.

y = -3x - 9

x-intercept (<em>put y = 0</em>):

0 = -3x - 9 <em>add 9 to both sides</em>

9 = -3x <em>divide both sides by (-3)</em>

-3 = x → x = -3

y-intercept (<em>put x = 0</em>):

y = -3(0) - 9

y = 0 - 9

y = -9

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Step-by-step explanation:

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