Answer
(a) slope $m=-3$, y-intercept $b=4$.
(b) See graph.
(c) $-3$.
(d) decreasing.
Work Step by Step
(a) Given $h(x)=-3x+4$, we can determine the slope $m=-3$, y-intercept $b=4$.
(b) Start from $(0,4)$, move 1 unit to the right, then 3 units down to reach $(1,1)$, connect the points. See graph.
(c) The average rate of change is the same as the slope, thus $R=m=-3$.
(d) The linear function is decreasing.
