Question

Graph the function y=x3+3x2-1. Based on the graph, what is the least possible x-value if y=0? Round your answer to the nearest hundredth, if necessary.

-2.88
-2.00
-0.65
-0.53

Answer 1

The cubic has three real zeros; the leftmost root is approximately x ≈ -2.879, which rounds to -2.88. So the correct choice is -2.88.