Question

The QUADRATIC curve-of-best-fit for the data in the table is given by the equation
A) y = 0.8x2 + 1.7x - 1.4.
B) y = 1.1x2 + 2.2x - 1.2.
C) y = 1.4x2 - 2.9x + 1.0.
D) y = 2.3x2 - 2.4x + 3.5

Answer 1

Considering the data given in the table, the quadratic curve of best-fit is given by:

D. y = 2.3x² - 2.4x + 3.5.

How to find the equation of quadratic regression using a calculator?

To find the equation, we need to insert the points (x,y) in the calculator.

In this problem, we have that:

• The values of x are: 0.8, 1.3, 2.2, 2.9, 3.7, 5.1.

• The values of y are: 2.7, 6.1, 9.4, 9.4, 33, 49.9.

Using a calculator, the equation is given by:

y = 2.3x² - 2.4x + 3.5.

Hence option D is correct.

More can be learned about quadratic functions at https://brainly.com/question/24737967

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