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? Question Each statement describes a transformation of the graph of \( f(x)=x \). Which statement correctly describes the graph of \( g(x) \) if \( g(x)=f(x)+7 \) ? O It is the graph of \( f(x) \) translated 7 units down. O It is the graph of \( f(x) \) translated 7 units to the right. O It is the graph of \( f(x) \) where the slope is decreased by 7 . \( f(x) \) translated 7 units up.

Ask by Floyd Chang. in the United States
Jan 31,2025

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Answer

The graph of \( g(x) = f(x) + 7 \) is the graph of \( f(x) \) translated 7 units up.

Solution

When you transform the function \( f(x) \) to \( g(x) = f(x) + 7 \), you are adding 7 to every output value of \( f(x) \). This operation results in shifting the entire graph of \( f(x) \) **vertically**. Here's a breakdown of what each option represents: 1. **7 units down:** This would correspond to \( g(x) = f(x) - 7 \), not \( f(x) + 7 \). 2. **7 units to the right:** This would involve a horizontal shift, such as \( g(x) = f(x - 7) \). 3. **Slope decreased by 7:** Changing the slope would involve multiplying \( f(x) \) by a factor, not adding a constant. 4. **7 units up:** Adding 7 to \( f(x) \) shifts the graph upward by 7 units. **Correct Answer:** • It is the graph of \( f(x) \) translated 7 units up.

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When you have the function \( g(x) = f(x) + 7 \), it means you’re adding 7 to the output of \( f(x) \). This action results in the entire graph of \( f(x) \) shifting vertically upwards by 7 units. So, any point on the graph of \( f(x) \), such as \( (x, f(x)) \), will move to \( (x, f(x) + 7) \). If you visualize it, imagine you are taking a flat piece of paper representing the graph of \( f(x) = x \) and just lifting it up into the sky by 7 units. All the shapes remain the same; they just get a little height boost, making it the "happy" version of \( f(x) \)! Thus, the correct statement describes the graph of \( f(x) \) translated 7 units up.

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