Answer:
(a) yes it does
(b) the rate is constant because the rate of change (slope) is the same throughout the function.
(c) The rate, or rate of change, is -1/2.
y1 - y2/x1-x2
4 - 2/3 - 9
2/-6
-1/2
Answer: 8
Area of a triangle=(1/2)bh
16=(1/2)4x
16=2x
x=8
Answer simplified - 4 square root 10