To accurately describe the relationship between the functions \( f(x) = \sqrt{x} \) and \( f(x) = \sqrt{x} + 3 \):
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The function \( f(x) = \sqrt{x} \) is the standard square root function, which starts at the origin (0,0) and increases slowly as \( x \) increases. The range of this function is \( y \geq 0 \).
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The second function \( f(x) = \sqrt{x} + 3 \) is simply the square root function shifted vertically upward by 3 units. Therefore, the new function will start at the point (0, 3) and also increases slowly from there. The range of this function is \( y \geq 3 \).
From the descriptions, the characteristics of these two functions should show that:
- The curve for \( f(x) = \sqrt{x} \) begins at (0,0) and stays below the one for \( f(x) = \sqrt{x} + 3 \), which starts at (0,3).
The possible graphs need to reflect this upward shift of 3 units for the second graph. It should be noted that both functions only exist for \( x ≥ 0 \) since the square root is not defined for negative \( x \).
None of the graphs described appear to give the correct range for \( f(x) = \sqrt{x} \) starting at (0,0) or for \( f(x) = \sqrt{x} + 3 \) starting at (0,3). The approximate y-ranges are also significant.
Based on this understanding, if you need to choose a graph, look for one where:
- One curve (the lower one) starts at (0, 0) and shapes to the right.
- The other curve (the upper one) starts at (0, 3) and also shapes to the right, remaining entirely above the first curve.
If you provide the corresponding graphs, I can help you choose the correct one.