Mathematics
will
17

what is the domain and range of f(x)=2|x-4|?

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bobster195

Think:  What's the range of the absolute value function y=|x|? What is the effect of the graph if we change this function to w=|x-4|? What is the effect of the graph of w if we multiply w by 2?  z=2|x-4|  Does this multiplication change the range?   Are there any x values that are not permitted in functions y, w and/or z?

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