Connect with experts and get insightful answers on IDNLearn.com. Discover detailed answers to your questions with our extensive database of expert knowledge.
Sagot :
To find the inverse of the function [tex]\( f(x) = (2x - 4)^2 \)[/tex] for [tex]\( x \geq 2 \)[/tex], we follow these steps:
1. Start with the given function:
[tex]\[ f(x) = (2x - 4)^2 \][/tex]
2. Let [tex]\( y = f(x) \)[/tex]:
[tex]\[ y = (2x - 4)^2 \][/tex]
3. Solve for [tex]\( x \)[/tex] in terms of [tex]\( y \)[/tex]:
To do this, we take the square root of both sides of the equation.
[tex]\[ \sqrt{y} = 2x - 4 \][/tex]
4. Isolate [tex]\( x \)[/tex]:
Add 4 to both sides.
[tex]\[ \sqrt{y} + 4 = 2x \][/tex]
Now, divide by 2.
[tex]\[ x = \frac{\sqrt{y} + 4}{2} \][/tex]
Since [tex]\( y \)[/tex] is the output of the original function and [tex]\( x \)[/tex] is the input, we can express the inverse function [tex]\( g \)[/tex] in terms of [tex]\( x \)[/tex]:
[tex]\[ g(x) = \frac{\sqrt{x} + 4}{2} \][/tex]
Now, we match this function to one of the given options:
[tex]\[ g(x) = \frac{1}{2} \sqrt{x} + 2, \quad x \geq 0 \][/tex]
Thus, the inverse of [tex]\( f(x) = (2x - 4)^2 \)[/tex] for [tex]\( x \geq 2 \)[/tex] is:
[tex]\[ g(x) = \frac{1}{2} \sqrt{x} + 2, \quad x \geq 0 \][/tex]
The correct answer is:
[tex]\[ \boxed{\frac{1}{2} \sqrt{x} + 2, \quad x \geq 0} \][/tex]
1. Start with the given function:
[tex]\[ f(x) = (2x - 4)^2 \][/tex]
2. Let [tex]\( y = f(x) \)[/tex]:
[tex]\[ y = (2x - 4)^2 \][/tex]
3. Solve for [tex]\( x \)[/tex] in terms of [tex]\( y \)[/tex]:
To do this, we take the square root of both sides of the equation.
[tex]\[ \sqrt{y} = 2x - 4 \][/tex]
4. Isolate [tex]\( x \)[/tex]:
Add 4 to both sides.
[tex]\[ \sqrt{y} + 4 = 2x \][/tex]
Now, divide by 2.
[tex]\[ x = \frac{\sqrt{y} + 4}{2} \][/tex]
Since [tex]\( y \)[/tex] is the output of the original function and [tex]\( x \)[/tex] is the input, we can express the inverse function [tex]\( g \)[/tex] in terms of [tex]\( x \)[/tex]:
[tex]\[ g(x) = \frac{\sqrt{x} + 4}{2} \][/tex]
Now, we match this function to one of the given options:
[tex]\[ g(x) = \frac{1}{2} \sqrt{x} + 2, \quad x \geq 0 \][/tex]
Thus, the inverse of [tex]\( f(x) = (2x - 4)^2 \)[/tex] for [tex]\( x \geq 2 \)[/tex] is:
[tex]\[ g(x) = \frac{1}{2} \sqrt{x} + 2, \quad x \geq 0 \][/tex]
The correct answer is:
[tex]\[ \boxed{\frac{1}{2} \sqrt{x} + 2, \quad x \geq 0} \][/tex]
We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. Find clear answers at IDNLearn.com. Thanks for stopping by, and come back for more reliable solutions.