Graphing Quadratic Equations with TI-84

This video tutorial explains how to graph quadratic equations using a TI graphing calculator and then transfer the graph onto paper. It covers entering the equation into the calculator, finding the vertex, and plotting points to draw the parabola by hand. The video also explains how to determine the axis of symmetry for the parabola.

What is the first step in graphing a quadratic equation on a TI graphing calculator?

• Pressing the 'Graph' button

• Entering the equation into the calculator

• Plotting points on paper

• Finding the vertex

Tags

CCSS.HSF-IF.C.7A

Which sign should be used for negative numbers when entering the equation into the calculator?

• Division sign

• Minus sign

• Subtraction sign

• Negative sign

Tags

CCSS.8.EE.C.7B

What is the purpose of pressing '2nd' and 'Calc' on the graphing calculator?

• To graph the equation

• To plot points

• To find the vertex

• To enter the equation

How do you determine the left bound when finding the vertex?

• Select the lowest point on the graph

• Select the highest point on the graph

• Select any point to the right of the vertex

• Select any point to the left of the vertex

What should you do after finding the vertex to graph the parabola on paper?

• Find the axis of symmetry

• Plot points using the table of values

• Re-enter the equation

• Copy the graph from the calculator

Tags

CCSS.HSF-IF.C.7A

How can you access the table of values on the graphing calculator?

• Press 'Graph'

• Press '2nd' and 'Graph'

• Press 'Y='

• Press '2nd' and 'Calc'

Tags

CCSS.8.EE.B.5

How many x-values should you pick to the left and right of the vertex for plotting?

• 5

• 4

• 3

• 2

Tags

CCSS.HSF-IF.C.7A

Why should you not copy the graph directly from the calculator?

• It will be too large

• It will be too small

• It will look sloppy

• It will be inaccurate

Tags

CCSS.HSF-IF.C.7E

What is the equation of the axis of symmetry for the given quadratic equation?

• x = 2

• x = 0

• x = -1

• x = 3

What form does the axis of symmetry take?

• Horizontal line

• Curved line

• Diagonal line

• Vertical line