Answer:
f(x) = 1/3x + 1
Step-by-step explanation:
slope-intercept form is
f(x) = mx + b
so just put the points in and you have:
f(x) = 1/3x + 1
also b stands for the y-intercept so if you look at your point (9,1) than your y-intercept would be 1.
hope I could help!!
