Question: A scatter plot showed a nonlinear relationship between y and an independent variable x. The x values were re-expressed using a square-root transformation, and a

A scatter plot showed a nonlinear relationship between y and an independent variable x. The x values were re-expressed using a square-root transformation, and a scatterplot of y and x'=x (X equals square root of X) was approximately linear. The regression line summarizing the relationship between y and x ' was y=14-2x

What is the predicted value of y when x = 9? (Hint remember the re-expression that was used)

a. -4

b. 8

c. -4 (Square root of -4)

d. 8

e. We cannot determine this, due to the fact that it is impossible to take the square root of a negative number.

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