Question

What is the x-intercept of the line with the equation 1/3x + y = -15 ?

( ? , 0)

Answer 1

Try to get y by itself on one side of the equal sign. Do you know how?

Answer 2

do i cancel out 1

Answer 3

One way to do it to just get the 1/3x and put it on the right side. You just have to change the symbol, and since it has none, you can assume it is positive, so you change it to negative. Your result: \[y = -\frac{ 1 }{ 3 } x -15\]

Answer 4

The equation for a line on graph is:

y=mx+b

The m is the slope (in this case, the -1/3x) and the b is the y intercept.

Answer 5

Knowing this, what do you think the y intercept is?

Answer 6

ok

Answer 7

hold on

Answer 8

Sure. :)

Answer 9

Would you like for me to show you?

Answer 10

lol yes please

Answer 11

Okay. ^-^
As I said before:
"The equation for a line on graph is:
y=mx+b
The m is the slope (in this case, the -1/3x) and the b is the y intercept."

Catch that? The "b is the y-intercept"...

Answer 12

What number is in the b's place?

Answer 13

-15

Answer 14

Correct! Good job. :D

Answer 15

@Secret-Ninja - the question is asking for the "x-intercept" not the "y-intercept"

Answer 16

:O

Answer 17

OMG

Answer 18

*FACEPALMS REALLY HARD*

Answer 19

@CJBALLER5323 - when a curve or line touches the x-axes what is the value of y?

Answer 20

I'm so stupid.

Answer 21

lol its ok

Answer 22

@Secret-Ninja - no you are not - we all make mistakes - that is what makes us human :)

Answer 23

@asnaseer im not sure

Answer 24

Curse my terrible eyesight.. At least now you know how to find the y intercept.. hehe...

Answer 25

3/4?

Answer 26

let me draw a graph to help you @CJBALLER5323 ...