Graphing Equations with Desmos

The video tutorial explains how to solve quadratic equations by setting them to zero and using the Desmos calculator to find solutions. It emphasizes the importance of interpreting graph intersections correctly to choose the right answer. The tutorial guides viewers through the process of inputting equations into Desmos, analyzing the graph, and selecting the correct solution from multiple choices.

Why is it important to set a quadratic equation equal to zero before solving?

• It simplifies the equation.

• It is a common theme in solving quadratic equations.

• It allows the use of the quadratic formula.

• It makes it easier to graph.

What tool is suggested for solving quadratic equations graphically?

• WolframAlpha

• Excel

• Desmos

• Graphing calculator

When using Desmos, what should you input in both boxes?

• The solutions of the equation

• The quadratic formula

• The left side and right side of the equation

• The same equation

Tags

CCSS.HSF-IF.C.7A

What do you look for on the graph after inputting the equation in Desmos?

• The lowest point

• The highest point

• The points where the lines intercept

• The slope of the lines

What should you click on to find the solutions on the Desmos graph?

• The blue points

• The gray points

• The red points

• The green points

If the solutions are 6 and -6, which answer choice is correct?

• D

• C

• B

• A