Question

If I'm given the coordinates (4,6) and (-1,2) my equation was written out like this...
2-6
m=----
-1-4
I did the equation but got m= -4/-5
What did I do wrong?? I cant figure it out.
I DONT want the answer just a brief explanation, please.

Answer 1

you did everything right you just forgot to cancel your negative for your numerator and denominator so instead of -4/-5 you would have 4/5 :)

Answer 2

Oh man... Thank you :) Haha, I never know whether I got it right or not (I SUCK at math!!)
Haha... Thanks again :)

Answer 3

no problem :)

Answer 4

So, if I were to write out the equation would I use the y= mx+b?

Answer 5

yes you can you can use the slope-intercept form which is y=mx+b or you can use the point-slope form but the slope-intercept form is easier :)
=b

Answer 6

y= mx+b where m= 4/5 and your x,y is one point so you can choose which ever point you want

Answer 7

okay one more question.. haha... with the given coordinates (above) it would be
y=4/5x+ B.... How can I find B? haha

Answer 8

ohhhhhhh so it can be any y intercept for b?

Answer 9

no you would solve b by using one of you points and plugging in the x and y value so if we use the point (4,6) we would get y=mx+b
where y = 6, m= 4/5 and x = 4 then solve for b
4=4/5(6)+b
4-4/5(6) = b
4-24/5 = b
-4/5 = b

Answer 10

Ohhhhhh I gotcha now! (sorry, my brain is fried right now haha been doing math since 5 this morning!) Haha

Answer 11

no problem, anytime, glad to help :D

Answer 12

Good to know! You should have that lifesaver title hahaha

Answer 13

looool

Answer 14

haha.... :) well, you totally rock!

Answer 15

thanks :)

Answer 16

No problemo :)