Question

find the x and y intercepts for this equation
-x – 3y = 9

Answer 1

First, replace y with zero. Let me know what you get afterwards.

Answer 2

-x-3(0)=9

Answer 3

Very good. Now multiply -3 by zero. Let me know what you get afterwards.

Answer 4

0

Answer 5

Okay, but you should re-write the entire equation afterwards:

-x - 0 = 9

Answer 6

Next, factor out -1 from both terms on the left side. Let me know what you get.

Answer 7

o

Answer 8

When you factor out -1 on the left side you end up with

-1(x + 0) = 9

Answer 9

Now divide both sides by -1. Let me know what you get.

Answer 10

-1/0=0
9/-1=-9

Answer 11

You're dividing both sides by -1, which means the first fraction is not correct. Besides you can't divide by zero. It is illegal to do so.

Answer 12

sorry I just dont think i am going to get this.

Answer 13

It's not that difficult

Answer 14

When you divide both sides by -1, you end up with

x + 0 = -9

Answer 15

Then the left side simplifies to just
x = -9, which is your x-intercept.

Answer 16

Now using the same original equation, set x = 0, then solve for y to find the y-intercept.

Answer 17

0-3y=9

Answer 18

or would it be 0+3y=9

Answer 19

0-3y=9 go for this

Answer 20

Find the x intercept by replacing y with 0.
Find the y intercept by replacing x with 0.

Answer 21

what would i do next

Answer 22

Replace x with 0 and solve the equation for y. That will be the y intercept.
Replace y with 0 and solve the equation for x. That will be the x intercept.