Question

1. What is the standard form equation of the line passing through (-2, 8) with a slope of 2?

2x - y = 12

2x - y = -12

2x + y = 12

2x + y = -12

Answer 1

b

Answer 2

y=2x+12

Answer 3

what do you know about slopes and lines?

to get that equation you need:
(y - y1) = m(x - x1)
substitute the point into the x1 and y1. substitute the slope to m
y - 8 = 2(x-(-2)
y - 8 = 2x + 4
y = 2x + 12

Answer 4

That makes sense to me now, thank you.

Answer 5

no probs

Answer 6

I'm confused again

Answer 7

why?

Answer 8

Would it be "C"?

Answer 9

And how'd you get 12?

Answer 10

12 is in equation

Answer 11

if you look at the options for answers they all equal 12

Answer 12

Oh, alright

Answer 13

to get the ansewr you need to isolate it

Answer 14

Which you'd divide? yes?

Answer 15

read what francine typedo get that equation you need:
(y - y1) = m(x - x1)
substitute the point into the x1 and y1. substitute the slope to m
y - 8 = 2(x-(-2)
y - 8 = 2x + 4
y = 2x + 12

Answer 16

I see what he typed, but that has yet to answer my question

Answer 17

The answer would show addition, check

Answer 18

The answer is either C or D

Answer 19

i think C

Answer 20

ill double check

Answer 21

Thank you

Answer 22

y-2x=12

Answer 23

thats wrrite in standard form

Answer 24

In conclusion, it's C?

Answer 25

2x + y = 12

Answer 26

and i got y-2x=12

Answer 27

i would assume so

Answer 28

thank you

Answer 29

im studying the same thing as we speak

Answer 30

Is that right? I doubt your future profession involves the need to know this.

Answer 31

ive been out of school ten years went back for upgrading change carrers

Answer 32

The best of luck

Answer 33

im a 96 average in math

Answer 34

LUCKY

Answer 35

the easy stuff screws me up

Answer 36

How come? Let me guess. You over-think it?

Answer 37

basically i dont use a calculator

Answer 38

I would basically be screwed

Answer 39

i tutored a friend online taking same course she got 95 % o her first exam

Answer 40

using skype i was able o share screens so i could read the problems

Answer 41

why do you volunteer like this?

Answer 42

i like math

Answer 43

i joined yeserday

Answer 44

If this was all based on psychology, English, and philosphy, I'd be giving everyone answers

Answer 45

I'm not good at math and it makes me insecure because math teachers know I'm no good

Answer 46

i was homeschooled so i could work full time never ad a teacher

Answer 47

You don't mean to tell me that people who like math enough go on here to help? I'm all for helping on Yahoo! Answers, but only the questions I know 100%

Answer 48

well i have an exam coming up and it's online and if i need help i know i have connections here