Solve the below:
1. At what points does the graph of
y = x^2 - 3x -10 cross the x-axis
2. What are all of the intercepts of the graph of
y = 15x^2 + 89x - 6?
3. What are all the intercepts of the graph of
y = 2x^2 - 11x + 5?
4. What are all the intercepts of the graph of
y = 6x^2 + 13x + 6?
5. What are all the intercepts of the graph of
y = x^2 + x + 5?
6. What are all the intercepts of the graph of
y = x^3 - x?