Reflect triangle YWZ across line YW. Which of these is a valid reason why the image of Z will coincide with X ​

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

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step-by-step explanation:

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