1) Which answer is a solution of the equation? 2x-y=5
A) (3,-1)

B) (1,2)

C) 7

D) (2,-1)

2) What is the slope of the line that passes through the points (1,3) and (5,-2)?
A) -4/5

B) 4/5

C) 5/4

D) -5/4