stepezano2
stepezano2 stepezano2
  • 26-05-2020
  • Mathematics
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Which of the following statements are true? Check all that apply.

Which of the following statements are true Check all that apply class=

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Ultroid Ultroid
  • 26-05-2020

In general, multiplying a function by some constant k will stretch its graph vertically by a factor of k if k>1, or shrink its graph vertically by a factor of k if k<1. In this case, k=2>1, so statement A is true.

The function [tex]f(x)=2\sqrt{x}[/tex] only accepts nonnegative inputs (so its domain is x>=0), and its outputs span all the nonnegative real numbers (range y>=0). This is also true of [tex]f(x)=\sqrt{x},[/tex] so statement C is also true.

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