Keith determines the zeros of the function f(x) to be -6 and 5. What could be Keith's function?

What is the vertex form of f(x) = x2 + 6x + 3

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?