FAN + MEDAL + TESTIMONIAL

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?

Question

FAN + MEDAL + TESTIMONIAL

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?

anonymous · Answer

attachment

anonymous · Answer

@ganeshie8 @pooja195 @Kainui @AlexandervonHumboldt2 @Preetha @TheSmartOne @satellite73

anonymous · Answer

Three dollars per month
 Nine dollars per month
 13.75 dollars per month
 41.25 dollars per month

welshfella · Answer

check the profits for 18 moths and 21 months , Subtract them and divide by 3

welshfella · Answer

just read the profits in dollars on the graph ( the vertical axis)

welshfella · Answer

you are given the profit for 21 months in the question (= 41.25 dollars)

anonymous · Answer

Thank you so much!

anonymous · Answer

Can you help me with another one? @welshfella

welshfella · Answer

ok but put it in a new post

anonymous · Answer

Ok