All three points displayed are on line. Find an equation relation x and y

y=0.5x+1.5

Step-by-step explanation:

fisrt take two of the pints and find the slop using the correct formula. i will use points (6,9) and (3,3) 6-3=3 and 9-3=6 3 divided by 6 is 0.5. zero point five is our slope. now we find the y-interept. i will use the point (3,3). our equation now is 3=0.5x3+b ill take 0.5 and subrat 0.5 from it, to cancel it out and get zero. now i will multiply 3 by 0.5 to get 1.5. now i will subtract 1.5 from 1.5 to cancel it out and get zero. i will now subtract 1.5 from 3 to get 1.5. this is now our y-intercept. lastly we put these numbers into an equation. y=0.5x+1.5

hope this helped :)

20%

step-by-step explanation:

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!