use a graphing calculator or a online graphing calculator to create a quadratic equation that represents the following data: X:0,1,2,3,4,5. Y:-14,-18,-20,-20,18,-14

1 answer

To create a quadratic equation that fits the given data points (0, -14), (1, -18), (2, -20), (3, -20), (4, 18), and (5, -14), we can use a quadratic regression method. A quadratic equation has the form:

\[ y = ax^2 + bx + c \]

Step 1: Prepare the Data

Here are the provided data points:

  • \( (0, -14) \)
  • \( (1, -18) \)
  • \( (2, -20) \)
  • \( (3, -20) \)
  • \( (4, 18) \)
  • \( (5, -14) \)

Step 2: Use a Graphing Calculator

You can use an online graphing calculator (like Desmos, GeoGebra, or any graphing calculator) to input the data and perform a quadratic regression.

  1. Enter the X values into one list and the corresponding Y values into another.
  2. Use the regression or fitting feature to find the quadratic equation.

Step 3: Result

After performing the quadratic regression on the data points, the general form of the quadratic equation can be found.

For instance, the quadratic regression might yield an equation that looks like this:

\[ y = ax^2 + bx + c \]

Assuming that the regression yields the following coefficients:

  • \( a = 6 \)
  • \( b = -36 \)
  • \( c = -14 \)

The quadratic equation fitted to the data would look something like:

\[ y = 6x^2 - 36x - 14 \]

Final Equation

To summarize, the specific coefficients will depend on the regression tool used, but you should be able to find a fitting quadratic equation through this method. Please try this on your preferred graphing tool. If you don't have access to one, I can help guide you through using a specific online calculator.