Wait can someone answer this I need help too
Answer:
i beleive thats the identity property, good luck and im sorry if its wrong!
Step-by-step explanation:
Y=1/2x-4
Perpendicular means it is opposite and the reciprocal. 1/2(4) = 2-4 equals -2.
(4,-2)
You need to expand the brackets eg.
(w-9)8 basically means 8 x (w-9) = 8w-72
Step-by-step explanation:
a)

b)
