Question

Which is the equation of the given line in slope-intercept form?

A.
y=3x-1
B.
y=3x+1
C.
y=-1/3x-1
D.
y=-3x-1

Answer 1

You need to do two things:
1. to understand the slope-intercept form
2. to read the graph and match it to the correct slope-intercept equation

Answer 2

First find the slope, you can either look at it directly and see what it is, or use the formula \[m = \frac{ y_{2}-y _{1} }{ x _{2}-x _{1} }\] because essentially you want the answer in y = mx+b form, so what's the b you ask, it's the y - intercept, where the line crosses the y-axis.

Answer 3

This is the slope-intercept form:
\(y = mx + b\)
where m = slope, and
b = y-intercept

Answer 4

Let's start with the simpler part.
b is the y-intercept. That is the y-coordinate of the point where the line crosses the y-axis.

Answer 5

Look at the graph and look at the point where the line crosses the y-axis.
What is the y-coordinate of that point?

Answer 6

I already have the answer thx though I was just trying to check my answer

Answer 7

Ok, which answer did you get?

Answer 8

B

Answer 9

That's not what I got.

Answer 10

The first thing you need is b.
Look at the point where the line crosses the y-axis.