In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
point 01
(0 , 9 ) x 1 = 0 y1 = 9
point 02
(4 , 12) x2 = 4 y2 = 12
Step 02:
Slope formula
m = ( y2 - y1) / (x2 - x1)
[tex]m\text{ = }\frac{12-9}{4-0}=\frac{3}{4}[/tex]y - intercept
(0 , 9 )
The answer is:
m = 3 /4 b = 9
