Can someone help me how to solve the following:
1) Find the real solutions of the cubic equation:
This is what i have done:
2) Find the inequality corresponding to the graph:
It should be obvious that the lower boundary of that region is a straight line and so its equation is linear. That excludes all except the second and third. In the picture it looks like when x= 0, y is between -.25 and -.50. Which of the given options is that?