Answer :
Answer:
b= -18
Step-by-step explanation:
x=3, y= -6, m=4
y=mx+b
-6 = 4 x 3 + b Solve for b
-6 = 12 + b
-6-12 = b
b= -18
Answer:
b = -18
Step-by-step explanation:
Slope y-intercept form: y =mx +b
Slope = m = 4
Plugin the value of slope in the above equation.
y = 4x + b
Now, the line passes through the point (3 , -6). Substitute x and y coordinates in the above equation.
-6 = 4*3 + b
-6 = 12 + b
b = -6 - 12
b = -18
[tex]\sf \boxed{\bf y-intercept = -18}[/tex]