X -5 y -.25 x 0 y 6 x 5 y 12.25 x 10 y 18.5

4. m=1.25 b=6 y=1.25x+6

5. m=20 b=10 y=20x+10

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

hope this ^_^