If a = -4m + 1, and b = 7m - 9, what is the value of a + b, in simplest form?
a.-3m + 8,
b. 3m - 8,
c. 11m - 8,
d.11m + 9

b. 3m - 8

Step-by-step explanation:

    A = -4m + 1

    B =   7m -  9     Add the terms in columns

A +B =  3m -  8

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0