Answer:
160 inches
Step-by-step explanation:
An octagon has 8 sides;
20*8=160
Hello!
Find the coordinate where x = -1:
At x = -1, y = 1, so the coordinate is (-1, 1).
Find the coordinate where x = 2:
At x = 2, y = -2, so the coordinate is (2, -2).
Find the rate of change between the points using the slope formula:

Plug in the coordinates above:

Simplify:
Thus, the rate of change between the points is -1.
Amount after 3 years = 4000( 1 + 0.04)^3 = $4,499.46 answer
Answer:
(h,k) shows the coordintes of the turning point.