Question

Slope - Intercept Form ? >_>

I chose

y=-1/3x+3

&

-x+3y=9

Answer 1

It was in groups . That was group 2 .. I now have to do this :

~ Type the first equation from the group you selected & Identify the slope & The y-intercept of the equation ..

Answer 2

\(\text{Slope Intercept}\rightarrow y=mx+b\)

Answer 3

I know that -_-

Answer 4

First choice that you made was slope intercept, so I assume that was correct?

Answer 5

The second is in standard form of an equation, \(Ax+By=C\)

Answer 6

It just says :

1. Choose one of the groups of equations from the table below . Indicate what group you chose .

I chose group 2 which is

y=1/3x+3 & -x+3y=9

Answer 7

Ok ok, I got it. And now you need to find the two things (slope&y-intercept), right?
For slope intercept form it is,
\(y=mx+b\\
m=\text{slope}\\
b=\text{y-intercept}\)

For the standard form of an line we need to solve it for y to get it into this form.

Answer 8

First , I wanna know HOW to get the slope & y-intercept ..

Answer 9

For slope-intercept form??

Answer 10

So is it ..
-1/3 for m
3 for b ?

Answer 11

Yep.

Answer 12

I need the slope .. :I Is the slope -1/3 ?

Answer 13

\(\text{Slope-Intercept}~y=\color{red}{m}x+\color{blue}{b}\)
\(\color{red}{m}=\text{slope}\\
\color{blue}{b}=\text{y-intercept}\)
\(y=\color{red}{-\dfrac{1}{3}}x+\color{blue}{3}\)

Answer 14

So that's the slope ? .-.

Answer 15

Yes..............

Answer 16

Sorry ? I dont understand it .. sheesh .

Answer 17

y-intercept : (0,3)

Answer 18

Yep.

Answer 19

How would I graph this using slope - intercept ?

Answer 20

Go down 3 on the y axis and put a dot ?

Answer 21

Plot a point at (0,3), then go down one, right 3 and plot another point. Then draw a line through the two points.

Answer 22

I have to change -x+3y=9 into slope - intercept form ..

Answer 23

Correct, just solve it for y.

Answer 24

Y = 9 though ..

Answer 25

\(-x+3y=9\\
3y=x+9\\
y=\dfrac{1}{3}x+3\)

Answer 26

It's the same as the first one . -_-

Answer 27

Nope, it is a positive slope in this one.

Answer 28

Oh I see ..

Answer 29

So the slope is y=1/3x+3 & the y-intercept is (0,3) ?

Answer 30

& To graph that one , You would plot a point of (0,3) , Go up one & To the right 3 ?

Answer 31

slope is \(\dfrac{1}{3}\)

Answer 32

And yep to your last one.

Answer 33

& Then draw a line through them ?

Answer 34

Yep :)

Answer 35

Thank you . (:

Answer 36

You are very welcome!