Cara is building a flower planter in her backyard. The planter shown in the figure below. The sides of each level of the planter are made of corrugated aluminum 8 inches
tall. The radius of the upper tier is 20 inches and the radius of the lower tier is 40 inches. About how much
corrugated aluminum is needed to build the planter?
a.
1,005.3 in
b. 2,010.6 in
c. 3,015.9 in?
d. 6,283.2 in?

Step-by-step explanation:

Function 'f' represents the number of miles (y-values) covered by the helicopter in 'x' (x-values) minutes.

f(x) = 40 - 2x

For x = 0,

f(x) = 40 miles

For f(x) = 0,

0 = 40 - 2x

x = 20 minutes

This shows that helicopter traveled 40 miles in 20 minutes.

Similarly, given graph shows distance covered by the jet on y-axis and duration of flight on x-axis.

For x = 0,

f(x) = 500 miles

For f(x) = 0,

x = 100 minutes

Commercial jet traveled 500 miles in 100 minutes.