Graphing a quadratic using a table

The video tutorial explains how to graph a quadratic equation using a table of X and Y coordinates. It begins by introducing the concept of graphing quadratics and setting up a table for coordinates. The instructor demonstrates how to choose initial points, calculate Y coordinates using the equation, and plot these points on a graph. The process involves connecting the plotted points to form the quadratic curve, emphasizing the continuous nature of the equation. The tutorial concludes with a summary of the steps involved in graphing using a table.

What is the first step in graphing a quadratic equation using a table?

• Drawing the graph without calculations

• Using a calculator to find the vertex

• Plotting random points on the graph

• Setting up the X and Y axes

When creating a table for graphing, what type of points should you initially select?

• Basic and easy points

• Complex and difficult points

• Random points

• Only positive points

How do you find the Y coordinate for a given X value in a quadratic equation?

• By plugging the X value into the equation

• By multiplying X by 2

• By using a graphing calculator

• By guessing the value

What is the Y coordinate when X is -2 in the equation Y = -4X^2?

• -16

• -8

• 8

• 16

What is the Y coordinate when X is 0 in the equation Y = -4X^2?

• -8

• 0

• -4

• 4

What should you do after plotting all the points on the graph?

• Connect the points to form the graph

• Add more random points

• Leave the points unconnected

• Erase the points

How is the continuous nature of a quadratic equation represented on the graph?

• By using dashed lines

• By drawing straight lines

• By plotting only a few points

• By adding arrows at the ends