anonymous
  • anonymous
Given the function f(x) = x2 and k = 3, which of the following represents the graph becoming more narrow?
Algebra
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anonymous
  • anonymous
Given the function f(x) = x2 and k = 3, which of the following represents the graph becoming more narrow?
Algebra
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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anonymous
  • anonymous
A. f(x)+k B. kf(x) C. f(x+k) D. f(x-k)
anonymous
  • anonymous
The only type of transformation that can make a graph more narrow/wide is a scaling transformation. A scaling transformation involves a multiple factor.
anonymous
  • anonymous
Shifts, whether vertical or horizontal, do not change the scale of the graph. Here, you have A representing a vertical shift, and C,D representing horizontal shifts.

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anonymous
  • anonymous
Only B represents a vertical scale.
anonymous
  • anonymous
Thank you for your thorough and prompt response!
UsukiDoll
  • UsukiDoll
Yes, the answer is correct, but I want to add something to this. Just to give you more information (like a reference guide) whenever we are presented with f(x)+k it means that we are shifting up k units. The + sign means up f(x)-k it means that we are shifting down k units. The - sign means down. Now suppose we are given f(x+k) now that we have the parenthesis involved it means that we are either shifting k units left or right. Due to the addition sign, we are shifting k units to the left f(x-k) Due to the addition sign, we are shifting k units to the right Therefore, any function given without the parenthesis means that we are either going down or up (depending on the sign) , and any function with the parenthesis means that we are either going left or right. (depending on the sign).

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