Question

What is the slope of a line perpendicular to line A?

a.4/7
b.-4/7
c.7/4
d.-7/4

Answer 1

do you know how to find the slop of line A?

Answer 2

i think its 2.5 ?

Answer 3

Find the slope of line A, using that slope you know that a line perpendicular to that line will have to have a slope that is opposite in sign as well as a reciprocal

Answer 4

nvm thats B

Answer 5

i thinks the answer is 4/7 but idk if it is negative

Answer 6

Guessing will not help you solve this problem

Answer 7

Find the slope of line A\[M = \frac{ y_2-y_1 }{ x_2-x_1 }\] This is the slope equation

Answer 8

i jus wana get this over with ahaha

Answer 9

its 0.57

Answer 10

If you learn how to do it you will get faster and it will be easier and easier to get over them

Answer 11

yessir

Answer 12

leave it in fraction form as the answers provided are also in fraction form

Answer 13

so it is 4/7 ?

Answer 14

Not exactly

Answer 15

negative the 7 is

Answer 16

Slope of A only\[M = \frac{ y_2-y_1 }{ x_2-x_1 }= \frac{ y }{ x }\] To find the slope a line, B, perpendicular to that slope you will need to flip the fraction over and change the signs so..\[Slope A = \frac{ y }{ x } \]\[Slope B = - (\frac{ x }{ y })\] which is for a line perpendicular to the slope A

Answer 17

ohhhhh -7/4 ?

Answer 18

The sign is incorrect

Answer 19

positive 7/4 ?

Answer 20

thanks a lot

Answer 21

One second

Answer 22

I do not remember the numbers I think the sign was actually correct

Answer 23

-7/4 then

Answer 24

(0,4) , (-7,0)\[M= \frac{ 4-0 }{ 0-(-7)}=\frac{ 4 }{ 7 } slope A\]

Answer 25

Slope B would then be the sign change and flipped so you are correct
-7/4

Answer 26

thanks!

Answer 27

No problem