Question

Point Slope

Answer 1

@sleepyjess

Answer 2

Same thing as the last one :) Wanna try?

Answer 3

y - 5 = x - 3

Answer 4

y - 5 = 2(x - 3)

Answer 5

left out the slope

Answer 6

so c

Answer 7

Yep :)

Answer 8

okay i get those, but i dont get this one

Answer 9

oh wait i think i get this

Answer 10

First we need to find the slope, do you know how to do that? :)

Answer 11

its 1/2

Answer 12

Hint, there are 2 correct answers :)

Answer 13

because there are two points

Answer 14

Yep, and you are correct on that slope btw

Answer 15

y - 3 = 1/2 (x - 4), so A
also, if the y is negative, would it become y-y1 = m(x+x1)?

Answer 16

*y1

Answer 17

Well, we know A can't be correct because A has a negative slope

Answer 18

oh i didnt see that lol

Answer 19

then b

Answer 20

Yep, and one other answer with the other point

Answer 21

y - 1 = 1/2(x + 3) so d

Answer 22

wait so how does the + get there? is it because the 3 is negative

Answer 23

Exactly!

Answer 24

okay thats what i thought

Answer 25

so this one looks different from the ones we already did

Answer 26

is c right @sleepyjess

Answer 27

I don't see any correct as far as the y-intercept goes, but that's the closest...

Answer 28

okay, i have just one more, if you can :)

Answer 29

Okay, pick 2 points on the line to start out

Answer 30

(0,1) (2,-2)

Answer 31

Okay, now we need to substitute those into the slope formula, \(\dfrac{y_2-y_1}{x_2-x_1}\)
\(\dfrac{-2-1}{2-0}\)

\(\dfrac{-3}2\)

Answer 32

So that's our slope

Answer 33

Now we have to figure out the points in each equation and see if they match to a point on the line

Answer 34

i couldnt find any that matched

Answer 35

Okay, well our options for points that match up are (-2, 4) and (-3, 1), are either of those points on our line?

Answer 36

(-2,4) is

Answer 37

Yep :)

Answer 38

y - 4 = 3/2 (x+2), so b?

Answer 39

Correct ^_^

Answer 40

Okay, that was it! Thank you so much for your help, I understand it now. :)

Answer 41

No problem! Glad I could help you understand :) Hopefully you can help someone understand this in the future ^_^

Answer 42

Bye :)