To find the inverse of the function f(x) = x4 + 12, we first need to express y in terms of x:
Let y = x4 + 12. To find the inverse, we switch x and y:
x = y4 + 12
Next, we solve for y:
- Subtract 12 from both sides:
- Now, take the fourth root of both sides:
x – 12 = y4
y = (x – 12)1/4
Thus, the inverse function is:
f-1(x) = (x – 12)1/4
To summarize, the inverse of the function f(x) = x4 + 12 is f-1(x) = (x – 12)1/4. This means that if you take a value, plug it into the original function, and then take that result and plug it into the inverse function, you will get back to your original input.