Quadratic Equations with Desmos

What is the first step in solving a quadratic equation using the Desmos graphing calculator?

• Set the equation equal to zero.

• Find the y-intercept.

• Graph the equation directly.

• Multiply all terms by 2.

When solving the equation 4x^2 + 12x = 135, what is the positive solution?

• 4.5

• 7.5

• -7.5

• -4.5

In the equation 4x^2 + 12x - 135 = 0, what do the x-intercepts represent?

• The maximum points of the graph

• The roots or solutions of the equation

• The slope of the line

• The y-intercepts

How do you determine the correct solution from multiple choice options using Desmos?

• By identifying the vertex

• By calculating the slope

• By finding the x-intercepts

• By checking the y-intercepts

What are the x-intercepts for the equation 5x^2 - 36x + 36 = 0?

• 3 and 4

• 2 and 5

• 0 and 7

• 1.2 and 6