Answer:
6
Step-by-step explanation:
3 * 5 = 15 miles during weekdays
6.5*2 = 13 miles on weekends
13 +15 = 28 miles total
28 / 7 = 4 miles average per day
X^2-6x+9
x^2-3x-3x+9
x(x-3)-3(x-3)
(x-3)(x-3)
(x-3)^2
Directly proportional means if x has a certain value, y should have the same value. but here in the graph, when x is 0, y has a value greater than 0. for x and y to be directly proportional, the line should go through 0.