A circle has a mass of 3 grams and a square has a mass of 2 grams. Which is the mass
of the triangle?
9
5
grams
11
3
grams
O 3 grams
O 7 grams

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

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

you,

mrb

i believe that the answer is

b. y-1=-2(x-4)

hope this !