Question

Write the equation of the line in slope-intercept form that passes through the point (3, -2) and has a slope of 2.

y = 2x - 8

y = 2x - 4

y = 2x + 7

y = 2x + 5

Answer 1

@Mertsj

Answer 2

@jim_thompson5910

Answer 3

what did you get

Answer 4

I forgot how to set the problem up for these :/

Answer 5

well you start with y = mx+b, your general slope intercept form

m = slope
b = y-intercept

Answer 6

you are given the slope

the given slope is 2, so m = 2

Answer 7

y = mx + b

y = 2x + b

now you plug in the given point (3, -2)...so you replace x with 3 and y with -2

-2 = 2(3) + b

-2 = 6 + b

...
...
...

b = ???

Answer 8

Would I subtract -2 from 6?

Answer 9

the other way around

Answer 10

you want to subtract 6 from both sides.

Answer 11

okay, give me a moment to do that

Answer 12

alright

Answer 13

http://sketchtoy.com/32604099 Like this?

Answer 14

you got it, so

m = 2 (given)
b = -8 (just found)

making

y = mx+b

turn into

y = 2x - 8

Answer 15

Thanks!

Answer 16

yw