Which of the functions below could have created this graph? -
A. F(x) = x* + 2x-2
bF(x) = -x ² - 4
cF(x)=x²
D. F(x) - 3x2 + 2x2

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%