Question

Using the graph attached, select the equation of a line that is perpendicular to the line on the graph and passes through the point (3, 2).

y = 1/3x + 3
y = -1/3x + 3
y = 3x + 2
y = -1/3x + 2

Answer 1

first of all
line which is on your graph is increasing or decreasing ???

Answer 2

Increasing

Answer 3

so slope of the line is positive
and you to find perpendicular
line
perpendicular slope should be opposite
for example
if you have 2/3 slope of line then perpendicular line slope \(\color{blue}{flip}\)
and \(\color{red}{opposite}\) sign like this -3/2

Answer 4

Okay, I think I understand what you're saying. What next?

Answer 5

ok so you can cancel two answer choices after this information

Answer 6

I just fixed the questions because I forgot to add in the fractions

Answer 7

your line is increasing positive slope
so you should have negative slope for other equation

Answer 8

So it's either going to be #2 or 4

Answer 9

i mean yes

Answer 10

Okay, so how do I determine which one it is?

Answer 11

now you have to rise over run
look your graph and see how many step going up and then run

Answer 12

Would the slope be 3/1? I'm not very good with these

Answer 13

yep 3/1 is a slope of graph so perpendicular slope should be what ??

Answer 14

It should be -1/3

Answer 15

yep right

Answer 16

Okay, so is the answer #2?

Answer 17

yes right

Answer 18

Who ho!!! Sadly, I have one last question

Answer 19

Using the graph attached, select the equation of the line that passes through the point (3, -1) and is perpendicular to the line on the graph.

1. y = -1
2. y = 3
3. x = -1
4. x = 3

Answer 20

@thesmartone please help him

Answer 21

@thesmartone here

Answer 22

Thanks @Nnesha,

Answer 23

@TheSmartOne Is the answer -1 (#3)?

Answer 24

http://prntscr.com/573ox7

Answer 25

Oops, I mean is it #1

Answer 26

And easy way it has to go through (3,-1) so x=3

Answer 27

Alright, once I saw the picture that's what I thought. Thanks

Answer 28

Becasue that line is y=2.5
This one is perpendicular so it has to be x=? And 3 is the x value in (3,-1) so x=3

Answer 29

Thanks :)

Answer 30

No prob :)