Which of these is the absolute value parent function a. f(x)=x^2 b. f(x)=2^x c. f(x)=x d. f(x)=|x|

Hi there! The answer is D.

f(x) = | x | is the absolute value parent function. The most important characteristic of an absolute value function are the vertical stripes | |, surrounding an expression with at least x (or another variable) in it. The stripes make everything between the stripes positive. Mathematically the absolute value indicates the distance from a certain number to 0. Therefore | -7 | = 7 and | -x | = x

~ Hope this helps you!

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