Step 1
Write out the equation of a line using the slope-intercept form,
y = mx + c
m = slope = 3
c = intercept on y axis
Step 2
y = mx + c
y = 3x + c
Step 3:
Find c as the line goes through (-4,-1)
-1 = (-4)x3 - c
-1 = -12 - c
c = -12 + 1
c = -11
Step 4
substitute c and m in y = mx + c
y = 3x - 11
