Answer
The required solution makes sense.
Work Step by Step
In the given function, to find the x-intercept $y=f\left( x \right)=0$. The equation then becomes:
${{x}^{3}}+2{{x}^{2}}-5x-6=0$. The x-intercepts can be found by using some technique that is currently unknown. But for the y-intercepts, put $x=0$; the equation becomes:
$y=-6$.
Thus, it is easy to find the y-intercepts even if the techniques for finding the x-intercepts are unknown.
