Solve simple linear-quadratic systems algebraically and graphically.
Recognize no real solution in a line-parabola system
Problem
Analyze the real intersections of \(y=x^{2}+5\) and \(y=2\). Set the expressions equal, reduce the equation, justify the real-solution classification, and connect it to the displayed answer graph.
Big Picture
What this problem is really about
A real intersection would require the two expressions for y to be equal. We’ll simplify that equality, use the fact that a real square cannot be negative to classify the system, and confirm the conclusion by comparing the horizontal line with the parabola’s minimum height.
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