An airport has one runway, as represented by the line segment on this coordinate grid. there are plans for a second runway that will be a dilation of the first runway. the dilation will have center point (−2,1) and scale factor 1.5.

answer:

c. the third graph

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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!

they would have to work 32 hours.