Question

What is the perpindicular line of (-5,2) y=1/2x-3

Answer 1

-2x-1

Answer 2

To find a perpendicular line to an equation, inverse the slope of the equation.

So, y=2x-3

Answer 3

How did you figure that?

Answer 4

the recipricol of 1/2 is -2

Answer 5

so now you have
2=-2(5)+b

Answer 6

and solve for b

Answer 7

nvm its actually
y=-2x-8

Answer 8

sorry

Answer 9

im having troubles

Answer 10

2=-2(-5)+b

Answer 11

typo

Answer 12

how did you get -2 from 1/2

Answer 13

shouldn't it be a postive 2 not a negative

Answer 14

(2,6), y=-1/4x+3

Answer 15

its is opposite reciporical

Answer 16

not just opposite

Answer 17

1/2 becomes 2/1 and then becomes negative

Answer 18

so would i just do : 6=2/1(2)+b

Answer 19

Then i would have 6=4+b
then -4 on both sides and 6-4=2 so b =2????

Answer 20

or did i do that totally wrong...

Answer 21

uh oh i lost what i was typing

Answer 22

a perpendicular slope to 1/2 is -2

Answer 23

y=-2x+b

Answer 24

then u plug in the coordinates from above

Answer 25

and solve for b

Answer 26

ok so then would i have 6=-2(2)+b

Answer 27

2=-2(-5)+b
2=10+b
-8=b

Answer 28

ok thanks for the help i think i get this now

Answer 29

then you remove the x and y coordinates and you have
y=-2x-8