Question

I WILL FAN AND MEDAL
Which equation below is not an equation that represents the graph shown below?
(Graph in comments)
y + 2 = -3(x - 1)

3x + y =1

y - 1 = -3(x + 2)

y = -3x + 1

Answer 1

Do you think you could help? @Jasmineflvs

Answer 2

first you need to put your answer choices in y = mx + b form

Answer 3

The y-intercept is quite clear and so is the slope.

If you're not sure, slope = (change in y) / (change in x).

At the y-intercept it goes up 3 and x goes -1, so it's 3/(-1) = -3.

Remember that y = mx + b where m is the slope and b is the y-intercept.
Substitute m (slope) and b (y-intercept) then you have what it should be.

Simplify all the above equations to the y = mx + b form and you will see which is the wrong one.

Answer 4

okay can you give me an example of them being in y=mx+b by putting A into that form? I'll do the rest

Answer 5

y + 2 = -3(x - 1)
y + 2 = -3x + 3
y = -3x + 3 - 2
y = -3x + 1 -- (y = mx + b form) slope = -3, y intercept = 1

Answer 6

okay I'm converting the rest now :)

Answer 7

Okay B is y=1-3x
c is y=-2x+6?
D is already in the correct form

Answer 8

I think the answer is C?

Answer 9

@Mandre

Answer 10

a = y = -3x + 1
b = y = -3x + 1
c = y = -3x - 5
d = y = -3x + 1

you are correct...answer is C