Question

M = 6
point = (12, -8)
b = ?

solve it

Answer 1

Explanation:

you mean the slope-intercept form of a line equation ?

y = mx + b

or what is the problem ?

if my assumption is correct, then m is the slope of the line.

and we got a point on the line.

so, we could start with the point-slope form and then transform.

the point-slope form is

y - y1 = m(x - x1)

again, m is the slope, (x1, y1) is a given point on the line.

so, we have

y - -8 = 6(x - 12)

y + 8 = 6x - 72

y = 6x - 80

that means b = -80