Question

Which equation represents the graph of the linear function?

Answer 1

http://www172.lunapic.com/do-not-link-here-use-hosting-instead/141637777790986?1609533340

Answer 2

@iGreen @Conqueror @mathmale

Answer 3

What's the y-intercept of the line?

Answer 4

The y-intercept is where the line passes on the y-axis.

Answer 5

So what's the y-intercept here? @iRespect

Answer 6

1?

Answer 7

Yep!

Answer 8

Okay, now we find our slope, let's take any two points from the line.

Let's take (-1, 4) and (1, -2).

Plug them into the slope equation:

\(m = \dfrac{y_2-y_1}{x_2-x_1}\)

\(m = \dfrac{-2-4}{1+1}\)

Add and Subtract:

\(m = \dfrac{-6}{2}\)

Now can you divide that? @iRespect

Answer 9

I gotcha! I think the answer is D.

Answer 10

y = -3x + 1 ?

Answer 11

Yep, you got it.

-6 / 2 = -3.

So the slope is -3, and the y-intercept is 1.

y = mx + b

Where m = slope, and b = y-intercept.

Plug in our slope and y-intercept:

y = -3x + 1

Answer 12

Thanks!