Question

Help needed with finding the slope intercept of a line. I don't understand why/how.
(0,-2) m=3
y+2=3(x-0)

Answer 1

y-y1=m(x-x1)---- this is the formula used to find a line
where y1=-2 and x1=0

Answer 2

now can specify what you dont understand

Answer 3

yes I get the whole plug in numbers

Answer 4

solve for y now

Answer 5

Slope intercept is a form of the line in which you need the slope and the y-intercept.

y=mx+b

m=slope
b=y-intercept

The y-intercept occurs ant the point where 'x'=0

You are therefore given the y-intercept through (0,-2), and they plainly told you 'm'

Just plug these into y=mx+b

Answer 6

y+2=3x
y=3x-2
then what?

Answer 7

That's it.

Answer 8

yeh thats is it

Answer 9

ok thanks

Answer 10

y=mx+b
y=3x+b
b is negative 2, so
y=3x-2