Finding Intersection Points by Graphing

What is the solution to this system?

• (1, -1)

• (-1, 1)

• (0, -2)

• (2, 0)

Lisa and Tammy are selling items at the craft show.  Which might be a reasonable solution from the graph showing the number of items sold when they both have earned the same amount?

• (1, 12)

• (3, 19)

• (5, 25)

• (0, 10)

^{What is the solution?} 

• 1

• -2

• (1, 2)

• (1, -1)

These two lines intersect at _____.

• (4, -2)

• (4, 2)

• (-2, 4) 

• No solution