Question

Write the equation of the line passing through the points (0, -4) and (-2, 2).

Answer 1

can you find the slope of the line..?

Answer 2

3

Answer 3

Well, there are two options for writing the equation of the line: point-slope form or slope-intercept form. Given that you only know the coordinates of two points, not the y-intercept, the answer should probably be in slope-intercept form

Answer 4

is that a guess..?

Answer 5

no i meant -3

Answer 6

The formula for slope is change in y coordinates over change in x coordinates @Blondebeauty

Answer 7

So is my answer for the slope wrong?

Answer 8

So find the slope:
2-0/-2-4= 2/-6

Answer 9

Yes it is wrong :( The slope is actually 2/-6

Answer 10

y2 - y1 / x2 - x1

so 2 -(-4) / -2 - 0

6 / -2

Answer 11

well that makes more sense..

you are given the point where the line cuts the y-axis (0,4) so the y intercept is
y = -4


the slope intercept form of the line is

y = mx + b

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

just substitute your information for the equation

Answer 12

oops sorry @Blondebeauty I had a typo, I meant 2-(-4)/-2-0, so the slope is actually 6/-2

Answer 13

That is correct

Answer 14

So now that you now the slope, like @campbell_st say, substitute that into the equation

Answer 15

so would it be y=6/-2x+(-4)?

Answer 16

know*

Answer 17

oh, and the slope is correct...