Problem preview
A-REI.11 Warmup M3-012-A09-V01

Solve f(x)=g(x) approximately using intersections of polynomial, rational, radical, absolute-value, exponential, and logarithmic graphs.

Determine the number of solutions from graph intersections

Problem

A line crosses a polynomial graph at \(\text{three}\) distinct points. State the number of solutions.

Big Picture

What this problem is really about

Translate the equation into a counting task: each distinct point where the graphs share an output contributes one solution input. Sweep across the full graph in one direction and tally only actual intersections. Turning points, nearby segments, and the two graphs themselves are not extra solutions, so this scan prevents both missed crossings and overcounting.

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Four variants of this problem type
Curriculum context
Course
Math III
Standard
A-REI.11
Category
Algebra
Domain
Reasoning with Equations and Inequalities
Objective
Solve f(x)=g(x) approximately using intersections of polynomial, rational, radical, absolute-value, exponential, and logarithmic graphs.
Problem type
Determine the number of solutions from graph intersections