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Multiple Choice
Given the equation , what kind of transformation does this represent?
A
A shift units to the right and units up
B
A reflection over the -axis
C
A vertical stretch by a factor of
D
A shift units to the left and units down
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검증된 단계별 안내
1
Step 1: Understand the general form of transformations for functions. The equation y = f(x - h) + k represents a horizontal shift by h units and a vertical shift by k units. If h > 0, the shift is to the right; if h < 0, the shift is to the left. Similarly, if k > 0, the shift is upward; if k < 0, the shift is downward.
Step 2: Analyze the given equation y = f(x - 3) + 2. Here, the term (x - 3) indicates a horizontal shift. Since the subtraction of 3 is present, it corresponds to a shift 3 units to the right.
Step 3: Examine the +2 outside the function. This represents a vertical shift. Since the value is positive, it corresponds to a shift 2 units upward.
Step 4: Combine the transformations. The equation y = f(x - 3) + 2 represents a shift 3 units to the right and 2 units up.
Step 5: Verify that no other transformations (such as reflections or stretches) are present in the equation. The absence of negative signs or multiplication factors confirms that the only transformations are the shifts described.