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Use quadratic regression to find the

equation for the parabola going
through these 3 points.
(-4, 7), (6, -33), and (10, -105)
y = [?]x² +
X +
Enter

User Lilya
by
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1 Answer

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Final answer:

To find the equation for the parabola going through (-4, 7), (6, -33), and (10, -105), use quadratic regression to solve for the values of a, b, and c in the general equation y = ax² + bx + c. Substituting the coordinates of the points into the equation yields a system of three equations, which can be solved to find the values of a, b, and c. The specific equation for the parabola is y = -x² - 10x - 6.


Step-by-step explanation:

To find the equation for the parabola that goes through the points (-4, 7), (6, -33), and (10, -105), we can use quadratic regression. Quadratic regression fits a parabolic function to a set of data points. The general form of the equation is y = ax² + bx + c. We need to find the values of a, b, and c.

Using the three given points, we can set up a system of three equations to solve for a, b, and c. Substituting the coordinates of the points into the equation, we get:

  • 7 = 16a - 4b + c
  • -33 = 36a + 6b + c
  • -105 = 100a + 10b + c

Solving this system of equations, we find that a = -1, b = -10, and c = -6. Therefore, the equation for the parabola is y = -x² - 10x - 6.


Learn more about Quadratic regression

User Groomsy
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