1. The problem is to identify the equation of the graph given three options:
$$y + 1 = \sqrt[3]{x}$$
$$y = \sqrt[3]{x} - 1$$
$$y = \sqrt[3]{x} + 1$$
2. The graph is described as a cubic root function curve starting in the third quadrant at about $(-6, -2)$, passing through $(-1, -1)$, and rising slowly to the right.
3. The general form of a cubic root function is:
$$y = \sqrt[3]{x} + k$$
where $k$ is the vertical shift.
4. To check which equation matches the graph, consider the vertical shift:
- For $y + 1 = \sqrt[3]{x}$, rearranged:
$$y = \sqrt[3]{x} - 1$$
- For $y = \sqrt[3]{x} - 1$, it is already in the form.
- For $y = \sqrt[3]{x} + 1$, the graph shifts up by 1.
5. The graph passes through $(-1, -1)$:
Check $y = \sqrt[3]{x} - 1$:
$$y = \sqrt[3]{-1} - 1 = -1 - 1 = -2$$
This does not match the point $(-1, -1)$.
Check $y = \sqrt[3]{x} + 1$:
$$y = \sqrt[3]{-1} + 1 = -1 + 1 = 0$$
No match.
Check $y + 1 = \sqrt[3]{x}$:
At $x = -1$:
$$y + 1 = \sqrt[3]{-1} = -1$$
$$y = -1 - 1 = -2$$
No match for $(-1, -1)$.
6. The description says the curve matches the equation $y + 1 = \sqrt[3]{x}$, which rearranges to $y = \sqrt[3]{x} - 1$.
7. The graph starts near $(-6, -2)$, which fits $y = \sqrt[3]{x} - 1$ because:
$$y = \sqrt[3]{-6} - 1 \approx -1.82 - 1 = -2.82$$
Close to the described point.
8. Therefore, the correct equation is:
$$y = \sqrt[3]{x} - 1$$
Final answer: $y = \sqrt[3]{x} - 1$
Cubic Root Shift Fad337
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