Which function or functions are inverses of y = −log0.25x?
Question
Which function or functions are inverses of y = −log0.25x?
Solution
The inverse of a function "undoes" the operation of the original function. In other words, if you have a function y = f(x), its inverse is the function that gives you back x when you plug in y.
The function given is y = -log0.25(x). The logarithm base 0.25 is the inverse of the exponential function base 0.25.
So, to find the inverse of y = -log0.25(x), we need to convert this logarithmic equation into an exponential equation.
The general form of a logarithmic function is y = logb(x), which is equivalent to the exponential function x = b^y.
So, for the function y = -log0.25(x), the inverse function is x = 0.25^-y.
However, since the logarithm is negated in the original function, we need to negate the exponent in the inverse function.
So, the inverse function of y = -log0.25(x) is x = 0.25^y.
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