Question

i99i

Answer 1

find the slope first, using the formula?: (y2-y1)/(x2-x1).

Answer 2

after that, you may use the point-slope form: y-y1=(slope)(x-x1).

Answer 3

I got -39/4 I don't understand how to use the point slope form.

Answer 4

kindly check that.

Answer 5

-4/-1* sorry.

Answer 6

how do we use the point slope form?

Answer 7

you still there?

Answer 8

yes, sorry.

Answer 9

you were right for -4/-1 or 4.

Answer 10

then, plug-in -1 for y1, and 5 for x1, and 4 for the slope, on y-y1 = (slope)(x-x1).

Answer 11

y-(-1)=(4)(x-5) like that?

Answer 12

yes like that.

Answer 13

note that, negative times negative is positive. (this is for the left side). for the right side, use distributive property.

Answer 14

so would it be y - 5 = 4(x+4)

Answer 15

opps, - (-1) = ___?

Answer 16

example: y - ( -2) = 3(x - 2) ----> y +2 = 3x - 6

Answer 17

y+5=4(x-4)

Answer 18

opps, note, we have: y -(-1) = (4)(x-5).

Answer 19

4x-20?

Answer 20

that is for the right side! :)

Answer 21

how about for y - (-1) (left side.)

Answer 22

y - 1?

Answer 23

opps, negative times negative is positive, so - (-1) = 1, or + 1, agree?

Answer 24

oh okay

Answer 25

so, we will have: y + 1 = 4x - 20, can you take it from here now?

Answer 26

What's after that though?

Answer 27

isolate the y on left side, since 1 is being added on left side, use the opposite operation of addition, which is?

Answer 28

subtract 1 from both sides?

Answer 29

that is right!:)

Answer 30

what will you have now?

Answer 31

y=4x-21

Answer 32

that is right!:)