Fill in the blank(s) to correctly complete each sentence. The graph of ƒ(x) = -(1/3)^x+4-5 is that of ƒ(x) = (1/3)^x reflected across the -axis, translated to the left units and down ___ units.

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Identify the base function given: ƒ(x) = (1/3)^x. This is an exponential decay function because the base (1/3) is between 0 and 1.

Look at the transformed function: ƒ(x) = - (1/3)^{x+4} - 5. Notice the negative sign in front of the exponential term, which indicates a reflection.

Determine the axis of reflection: Since the negative sign is multiplying the entire exponential expression, the graph is reflected across the x-axis.

Analyze the horizontal translation: The exponent is (x + 4), which means the graph is shifted to the left by 4 units (because adding inside the exponent shifts the graph left).

Analyze the vertical translation: The '-5' outside the exponential function means the graph is shifted down by 5 units.

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주요 개념

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

Reflections of Functions

A reflection of a function across an axis flips its graph over that axis. For example, multiplying a function by -1 reflects it across the x-axis, changing the sign of all output values while keeping input values the same.

Horizontal Translations

Horizontal translations shift the graph left or right. Replacing x with (x + h) moves the graph h units to the left if h is positive, and h units to the right if h is negative, affecting the input values before the function is applied.

Vertical Translations

Vertical translations move the graph up or down. Adding or subtracting a constant outside the function shifts the graph vertically; adding k moves it up k units, while subtracting k moves it down k units, changing the output values directly.

Fill in the blank(s) to correctly complete each sentence. The graph of ƒ(x) = -(1/3)x+4-5 is that of ƒ(x) = (1/3)x reflected across the ______ -axis, translated to the left ______ units and down _______ units.