Math 1090
Quiz 12
6 February, 2012
Name:
Instructions: Answer the questions below. Make sure to show all work
clearly.
1. (10 points) On the axes below, carefully graph the solution set to the following system
of equations. Show any calculations you perform in the space provided.
x
y
x+y
y − 2x
≥ −2
≤4
≥0
≥ −2
2. (2 points) (Bonus!) Find the coordinates of the four corners of the region you graphed
above. (If your region doesn’t have four corners, it’s wrong. Work this problem on the
back where there is space.)