parabola problems, and other questions
Hello, I have a few questions that are making my head hurt.
if the parabola goes through the point (2,0), what is the value of a?
a:How many possible positive roots are there?
b:How many possible negative roots are there?
c:What are the possible negative roots?
d:Using synthetic substitution, which of the possible rational roots is actually a root of the equation?
e:Find the irrational roots of the equation.(Hint:Use the quadratic formula to solve the depressed equation.)