Given the ordered pairs, find the value of r that makes the slope equal to the given value. (5, 3) and (6, r), m = -1 A. r=1

C. r=2

B. r=-1

D. r=0

Which graph best represents a system of equations that has no solution?

A.

C.

B.

D.

Acollege is selling tickets for a winter fund-raiser. one day, krissa sold 14 adult tickets and 8 student tickets for a total of $376. the next day, she sold 7 adult tickets and 11 student tickets for a total of $272. krissa wanted to find the price of one adult ticket, a, and the price of one student ticket, s. she wrote and solved the following system of equations.