3. Quadratic Equations

3.01 Solving using graphs and tables

3.02 Solving by factoring

3.03 Solving using square roots

3.04 Solving using the quadratic formula

3.05 Solving using appropriate methods

3.06 Linear-quadratic systems

3.07 Quadratic inequalities

3.08 Operations with complex numbers

3.09 Quadratic equations with complex solutions

United States of America

Grades 9-12

3.06 Linear-quadratic systems

Adaptive

Worksheet

Interactive practice questions

Which of the following is the graph of a line and a parabola with no points of intersection?

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A

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B

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C

Easy

< 1min

Which of the following is the graph of a line and a parabola with one point of intersection?

Easy

< 1min

Which of the following is the graph of a line and a parabola with two points of intersection?

Easy

< 1min

Consider the graphs of $y=x^2$y=x2 and $y=2x$y=2x.

Easy

1min

Outcomes

A.REI.C.7

Solve a simple system consisting of a linear equation and a quadratic equation in two variables algebraically and graphically.

A.REI.D.11

Explain why the x-coordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately.

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