Question

what is the slope of the line that is perpendicular to the line that passes through the points (7,6) and (3,-4)

Answer 1

first you want to find the slope of those points

Answer 2

so how would i do that?

Answer 3

(y2-y1)/(x2-x1)

Answer 4

ok give me a sec

Answer 5

sure

Answer 6

okay I got 2.5

Answer 7

next you put it into point slope form or (y-y1)=m(x-x1)

Answer 8

i dont know how to do that

Answer 9

well you found your slope m and pick one of your sets of points and plug them in for y1 and x1

Answer 10

okay i got -2/5 for an answer, is that correct?

Answer 11

y-6=2.5(x-7)

Answer 12

no, @katlin95, slope of the perpendicular line to a line with slope m is -1/m ...leave your slope in fraction form and see what -1/m = ?

Answer 13

hhhm this is hard for me lol

Answer 14

y-6=(1/2.5)x-((1/2.5)*7)

Answer 15

@katlin95, once you get slope m which you already found, just find what -1/m is :) that isn't hard is it?

Answer 16

the question ask for slope of perpendicular line, nickr is finding the equation, not the slope

Answer 17

oh all you need is the slope my bad, didnt see that

Answer 18

nice catch

Answer 19

@nickr np :) enjoy the night

Answer 20

thanks same to you

Answer 21

-2??? right?

Answer 22

no your slope is 2.5 so your answer would be 1/2.5

Answer 23

your slope m is 10/4 = 5/2 ...so -1/m = -1/(5/2) = -2//5

don't write slope in decimal ...leave it as fraction, will make it much easier for you

Answer 24

and thanks nick :)

Answer 25

i dont have that as an answer all i got was -2/5 for answer, which i said long before as my first answer

Answer 26

thanks so much guys!

Answer 27

yes you are correct trying to type to fast and forgot negative

Answer 28

np sorry i messed up

Answer 29

we all make mistake:)

Answer 30

nickr, don't you worry, i made mistakes all the time :)

Answer 31

what now you dont lol