Ahoming pigeon flew a distance of 120 miles in 4 days. if it flew x miles in the first 3 days, write an expression to tell how many miles it flew on the last day.

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hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval