Answer
A
Work Step by Step
Problem is select a formula equal to $\frac{-a}{-b}$
A. $\frac{a}{b}$ True because a negative divided by a negative is always a positive.
B. $\frac{a}{-b}$ False because anything postive divided by a negative is negative.
C. $\frac{-a}{b}$ False because anything negative divided by a positive is still negative .
D. $-\frac{a}{b}$ The negative in front of the equation implies that the end result is going to be negative which would be false because a negative divided by a negative is always positive.
