Question

how do i find the equation of the line in slope intercept form when there are 4 points on the line

Answer 1

For the slope, you use the formula \[(y _{2}-y _{2})/(x _{2}-x _{1})\]
Do you have any points available to you? If so, what are they?

Answer 2

I meant \[(y _{2}-y _{1}) sorry\]

Answer 3

(-6,0) (-3,-1) (0,-2) (3,-3)

Answer 4

http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/a/unit03/resources/docs/WritingEquations_WritingAssignment.pdf

Answer 5

Okay good, well with the graph you can count rise/run to find out the slope, without a graph, the formula I gave you would be what you need. Now we need the y-intercept to complete this formula, based on the graph, where does the line cross the y-axis?

Answer 6

from (-6,0) through (3,-3)

Answer 7

I'm sorry, I should of said, at what -point- does the line cross the y-axis? That will be the y intercept for your equation.

Answer 8

-2

Answer 9

Yep, now slope-intercept form is y=mx+b, can you figure it out based on the slope, m, and y intercept, b?

Answer 10

so would it be y=1x+-2

Answer 11

You didn't get the slope right, however, you did get the y intercept right. On the graph, count from one point to another, rise(up or down) divided by run(left or right). And you will get your slope. Also, when the y intercept is negative, you can write it as y=mx-b