Problem preview
A-REI.7 Warmup M2-007-A05-V01

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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Four variants of this problem type
Curriculum context
Course
Math II
Standard
A-REI.7
Category
Algebra
Domain
Reasoning with Equations and Inequalities
Objective
Solve simple linear-quadratic systems algebraically and graphically.
Problem type
Recognize no real solution in a line-parabola system