How to Graph a Parabola in Vertex form

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How to Graph a Parabola in Vertex form

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  1. How to Graph a Parabola in Vertex form with the calculator.

    Slide 1 - How to Graph a Parabola in Vertex form with the calculator.

    • By: Zykiah Kursh
  2. Example of a problem in Vertex form

    Slide 2 - Example of a problem in Vertex form

    • Y=a(x-h)2+k
  3. Step one

    Slide 3 - Step one

    • The first step is to write down your equation.
    • Y= -3 (x+1)
  4. Step 2

    Slide 4 - Step 2

    • Next, Make a X & Y chart.
    • X
    • Y
  5. Step 3

    Slide 5 - Step 3

    • If the number in parenthesis is a negative or positive, you do the opposite of that number and put that opposite number on the x side of the table. (For example)
    • Y= -3 (x+1)
    • -1
    • x
    • y
    • -1
  6. Step 4

    Slide 6 - Step 4

    • After that you can put any numbers you would like in the x and y chart but it can’t be too big of a number.
    • X
    • Y
    • -0
    • -1
    • -2
  7. Step 5

    Slide 7 - Step 5

    • Then, you replace “x” with those numbers (one at a time) in the calculator.
    • Like the example to the right
  8. Step 6

    Slide 8 - Step 6

    • After that you will have all the outcomes (Y) listed
    • Problem
    • Y= -3 (x+1)
    • X
    • Y
    • -0
    • -4
    • -1
    • -1
    • -2
    • -4
  9. Step 7

    Slide 9 - Step 7

    • FINALLY! Those are your points for your graph, now you graph them!
    • Problem Y= -3 (x+1)
  10. Slide 10

    • ….AND THAT’S HOW YOU MAKE A PARABOLA IN VERTEX FORM!