Correlations

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Question 8
A common myth states that pots of gold sit on the ground at the ends of a rainbow, waiting for lucky people to find them.

Complete the following statement by typing the correct numbers in each blank.

According to the equation for the quadratic regression curve of best fit, the pots of gold will be located at x=blank and x=blank

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Answer: Correct! For the first box, any answer between 1.00 and 1.10 is also correct. For the second box, any answer between 10.50 and 11.00 is also correct. Incorrect.

The pots of gold will be found at 1.04 and 10.96. Use the calculation features of the graphing calculator and find the zeros of the regression equation y=-negative0.126x²+1.516x+-negative1.436y equals negative one hundred twenty six thousandths x squared plus one and five hundred sixteen thousandths x plus negative one and four hundred thirty six thousandths.

For the first box, any answer between 1.00 and 1.10 is also correct. For the second box, any answer between 10.50 and 11.00 is also correct. One or more of your answers are incorrect. Try again. Use the regression equation. Find the zeros of this equation.