8A F11 Q5

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Question: Graph the system of inequalities          

Foundations
1) What do the graphs of , and look like?
2) Each graph splits the plane into two regions. Which one do you want to shade?
Answer:
1) The first graph looks like a V with the vertex at (0, 1), the latter is a circle centered at the origin with radius 3.
2) Since the Y-value must be less than , shade below the V. For the circle shde the inside.

Solution:

Step 1:
The zeros of the left hand side are , 1, and 4