Question

Help please and thank you

Answer 1

The graph below shows the value of Edna's profits f(t), in dollars, after t months:

graph of quadratic function f of t having x intercepts at 6, 0 and 18, 0, vertex at 12, negative 36, and passes through point 21, 41.25

What is the closest approximate average rate of change for Edna's profits from the 18th month to the 21st month?
Three dollars per month
Nine dollars per month
13.75 dollars per month
41.25 dollars per month

Answer 2

@Mehek14

Answer 3

can you attach a pic of the graph

Answer 4

C
use the slope formula

Answer 5

thanks!!

Answer 6

\(\dfrac{41.26-0}{21-18}=\dfrac{41.26}{3}=13.75\)