Mathematics for IGCSE & O level - Sketching Curves (Section 4 - No. 49)
If the function \(y=x^3-27\) intersects the x-axis, what is the x-coordinate of the point of intersection?
3
-3
9
-9
Explanation
Set y=0 and solve for x. \(x^3 = 27, so x=3\)
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