Graph the inverse of each one-to-one function.

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Identify the given function on the graph. Here, the red curve represents the function, which appears to be an exponential function increasing from left to right.

Recall that the inverse of a function swaps the roles of the x- and y-coordinates. This means the inverse function reflects the original function across the line \(y = x\).

To graph the inverse, take several points on the original function, such as \((x, y)\), and plot their inverses as \((y, x)\). For example, if the function passes through \((1, 2)\), the inverse will pass through \((2, 1)\).

Draw the line \(y = x\) as a reference. This line acts as a mirror for the function and its inverse.

Using the reflected points, sketch the inverse function. For an exponential function, the inverse will typically be a logarithmic curve, increasing slowly and passing through points reflected over the line \(y = x\).

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

One-to-One Function

A one-to-one function is a function where each output value corresponds to exactly one input value. This property ensures the function has an inverse because no two different inputs produce the same output, allowing the inverse to be well-defined.

Inverse Function

The inverse of a function reverses the roles of inputs and outputs, meaning if the original function maps x to y, the inverse maps y back to x. Graphically, the inverse is a reflection of the original function across the line y = x.

Graphing and Reflection Across y = x

To graph the inverse of a function, reflect each point of the original function across the line y = x. This means swapping the x- and y-coordinates of each point, which visually demonstrates the inverse relationship between the function and its inverse.