Question

For the linear function
f(x) = 5x + 3
(a) Determine the slope and y-intercept
(b) Use the slope and y-intercept to graph the linear function.
(c) Determine the average rate of change of the function
(d) Determine whether the linear function is increasing, decreasing, or constant.

Answer 1

a) by the "just look at it" theorem
slope = 5, y-intercept is 3

b) can't graph on here
c) average rate of change = slope = 5
d) the slope is positive, so the function is increasing

college algebra ?? mmmhh.