Question

Am I right?
What is the graph of x + 3y = -9?
I chose D
File is being attached as we speak

Answer 1

change the given line into "y = mx + b" formb

Answer 2

x + 3y = -9

3y = -x - 9

y = (-1/3)x - 3

Answer 3

so, the slope is NEGATIVE.
wat does that tell us ha ?

Answer 4

slope is negative, means the graph will be falling as u go right

Answer 5

it should look something like that okay ?

Answer 6

Okay :)

Answer 7

Look at ur options,
only two graphs are falling. wat are they ?

Answer 8

A and B

Answer 9

yes, so one of them is ur answer

Answer 10

how do we decide which one it is ?

Answer 11

Hmm

Answer 12

y = (-1/3)x - 3

Answer 13

in that, "-3" represents the y intercet

Answer 14

wat does a "y intercept" tell us ?

Answer 15

it tells us that the graph cuts y axis at -3

Answer 16

Wait! I think it's B

Answer 17

Look at the graphs now,
in which graph does the line cuts y axis at -3 ?

Answer 18

Have a look at graph B,
the line is crossing y axis at "+3" right ?

Answer 19

but we're looking for a graph that cuts y axis at "-3"

Answer 20

so, B is NOT ur answer, ok ?b

Answer 21

A! Since it's cutting through -3

Answer 22

You got it !!

Answer 23

Thanks so much!

Answer 24

u wlc :)