Question

What is the slope-intercept form of the function that contains the point (8, 12) and has a slope of _2?

Answer 1

12 = 2(8) + c
c = - 4
y = 2x - 4

Answer 2

The function has a slope : m = - 2 and contains the point ( 8, 12 ).
y = m x + b
12 = ( - 2 ) * 8 + b
12 = - 16 + b
b = 12 + 16
b = 28
The slope-intercept form of the function is:
y = - 2 x + 28