- This inequality represents the region above or on the parabola \( y = x^2 - 4 \).
- To graph \( y = x^2 - 4 \), plot points for several values of \( x \) and calculate \( y \). For example:
- If \( x = 0 \), then \( y = 0^2 - 4 = -4 \).
- If \( x = 1 \) or
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