Question

Find x if the line through (-2, 3) and (x, 8) has a slope of 5/12

Answer 1

Hi there, do you need help?

Answer 2

Yes.

Answer 3

Do you know how to find the slope between 2 points?

Answer 4

(8-3)/(x+2)=5/12. If you solve this equation, you will get the missing variable.

Answer 5

Hmm. ok, and yes to the slope question

Answer 6

Do you know how to solve the equation that I just posted?

Answer 7

im working it out now

Answer 8

I got x=4

Answer 9

That should help.

Answer 10

yep.. thats right.. thank you!

Answer 11

Yep

Answer 12

can you help me with something else?

Answer 13

Depends.

Answer 14

ok, if you can, can you help with .. Write the equation of the line that has the indicated slope and contains the indicated point. Express the final equation in standard form.
m = 3, (−5, 8)

Answer 15

Use the point slope formula.

Answer 16

I did, the trouble is converting it to standard form..

Answer 17

What did you get?

Answer 18

y=3x+23 ?

Answer 19

That's y intercept form.

Answer 20

oops

Answer 21

y-8=3(x+5). That is after you enter the values into the point slope form.

Answer 22

-3x+y=23

Answer 23

I put that but its says its wrong. I got -3x+y=23 before

Answer 24

Then rewrite it. 3x-y=-23

Answer 25

it worked!

Answer 26

i had the same problem with a question just like this

Answer 27

for.. Write the equation of the line that contains the indicated pair of points. Express the final equation in standard form... I got -2x+y=3 but it says its wrong

Answer 28

the points were (1, -1) (5, 7)

Answer 29

Did you solve it correctly?

Answer 30

I'm sure I did...

Answer 31

What slope did you get?

Answer 32

m=2

Answer 33

okay, but your equation -2x+y=3 is not correct.

Answer 34

it should be a 4, not a 3

Answer 35

hmm.. ok
so if I substitute the 4 everything is correct then?

Answer 36

one sec.

Answer 37

ok

Answer 38

Actually, if it doesn't accept it, then rewrite it . 2x-y=-3

Answer 39

I put that in before, and it said it was wrong

Answer 40

i put it in before, 2x+y=-3, 2x-y=-3, y-2x=-3, and -2x+y=3 and they're all wrong... maybe I did the problem wrong

Answer 41

Okay, what is the question asking? Just copy and paste it here.

Answer 42

Write the equation of the line that contains the indicated pair of points. Express the final equation in standard form.
(1, -1), (5, 7)

Answer 43

ahh, This is the correct form. 2x-y=3

Answer 44

Try that.

Answer 45

Yes, it worked!

Answer 46

I have 1 more that is just like this.. I need the correct standard form..

Answer 47

Same question, but the new points are (-5, 4), (3, -3)

Answer 48

Best response?

Answer 49

well.. I got y=-7x-3/8

Answer 50

thats not in standard of course, but is because its confusing

Answer 51

just so you don't get confused