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Which type of parent function does the equation [tex]$f(x)=\frac{1}{x}$[/tex] represent?

A. Square root
B. Reciprocal
C. Absolute value
D. Cube root


Sagot :

To determine the type of parent function that the equation [tex]\( f(x) = \frac{1}{x} \)[/tex] represents, let's analyze the given function thoroughly.

1. Square Root Function:
- The general form of a square root function is [tex]\( f(x) = \sqrt{x} \)[/tex].
- Clearly, [tex]\( \frac{1}{x} \)[/tex] does not take the form of [tex]\( \sqrt{x} \)[/tex].

2. Reciprocal Function:
- The general form of a reciprocal function is [tex]\( f(x) = \frac{1}{x} \)[/tex].
- The given function [tex]\( f(x) = \frac{1}{x} \)[/tex] exactly matches this form.

3. Absolute Value Function:
- The general form of an absolute value function is [tex]\( f(x) = |x| \)[/tex].
- Again, [tex]\( \frac{1}{x} \)[/tex] does not take the form of [tex]\( |x| \)[/tex].

4. Cube Root Function:
- The general form of a cube root function is [tex]\( f(x) = \sqrt[3]{x} \)[/tex].
- The given function [tex]\( \frac{1}{x} \)[/tex] does not match [tex]\( \sqrt[3]{x} \)[/tex].

By analyzing the forms of different parent functions, we ascertain that [tex]\( f(x) = \frac{1}{x} \)[/tex] is a reciprocal function. Therefore, the type of parent function represented by the equation [tex]\( f(x) = \frac{1}{x} \)[/tex] is:

B. Reciprocal