Question

Slope = -2, passing through (3,-1) I'm supposed to write the equation of the line that satisfies the given conditions. And I must write the answer in slope intercept form. I've gotten down to to -2 = (-2)(4) + b, but I don't know how to solve for b.

Answer 1

y-(-1) = -2 * (x-3)
y=-2x+5

Answer 2

What does * mean?

Answer 3

Inik gave you a simple numerical answer, however, if you want to know how to solve for b you simply take your slope intercept equation:

y=mx+b

Insert slope:

y=(-2)x+b

Insert the X and Y coordinate given (3,-1)

-1=(-2)(3)+b

Solve for b.

-1=(-6)+b
5=b

Answer 4

* is multiplication :)

Answer 5

Oh ok. Thank you Inik, Jesse and Melor.