Consider the line y=x.

a. if the line is dilated by a factor of 2, what is the equation of the resulting line?
b. if the resulting line is translated 3 units up, what is the equation of the resulting line?

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!

1332.

this is because to get from 333 to 999 you multiply by 3, and you should do the same to the number of hours.

therefore you would do 444*3=1332

step-by-step explanation:

x- intercept ( 0,12)  

y-intercept (-6,0)