Segment KJ shown below is the hypotenuse of isosceles right triangle JLK.

On a coordinate plane, triangle J L K has points (2, 4), (5, 1), (2, negative 2).

What is the length of one of the congruent legs of JLK?
3
StartRoot 18 EndRoot
6
StartRoot 72 EndRoot

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

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!