Answer:
Step-by-step explanation:
Use the coordinates of two points to determine the slope of the line through them.
Using (3,105) and (1,35): slope = (105-35)/(3-1) = 35
Point-slope equation for line of slope 35 passing through (1,35):
y-35 = 35(x-1)
y = 35x, which is equivalent to Brian's equation.
