Question

What is the equation in point-slope form of the line passing through (-2, -5) and (2, 3)?
fan and medal

Answer 1

@wolf1728

Answer 2

@TheRealMeeeee

Answer 3

any ideas on how to begin?

Answer 4

well i think its

(y + 2) = -2(x + 5)

Answer 5

how did you get the -2?

Answer 6

becuase point slope formula is y-y=mx(x-x1) and the points (-2,-5) woul make the signs turn into postives

Answer 7

i meant the red two \[(y + 2) = \color{red}{-2}(x + 5)\]

Answer 8

to start, but point slope, you have almost correct for the formula, it's not mx, it's just m

Answer 9

this is my question

Answer 10

I just want you to tell me why

Answer 11

(-2,-5) and (2,3)
first we need slope
m=y2-y1/x2-x1
m=3+5/2+2
m=8/4
m=2.
so far we have y=2x+b
now sub in any point. i will use (2,3) where 2=x and 3=y
3=2(2)+b
3=4+b
-1=b
now we have our equaion.
y=2x-1

Answer 12

those are my points

Answer 13

of course... you are guessing. I should have known. You shouldn't do that. It makes those helping you think you know something you do not. So, to start, what does the m represent?

Answer 14

oh sorry. i didn't do point slope form, idk what that is?

Answer 15

no im not guessing im trying to plug in the points uhh duuhh

Answer 16

this website should help. our teachers didn't teach us it, since they felt we had to go at a quicker pace but heres a website to help you http://www.purplemath.com/modules/strtlneq2.htm

Answer 17

okay its not -2
its either b or c

Answer 18

nvm its c i got the equation