Use the quadraic equation to fin the solutions to the following:

1. x^2 + rx + s

( I understand this but please explain and show the steps I can do the rest lol.)

2. If the graph of an quadratic function does not have an x intercept, how many solutions does it have?

(Answer but please explain thoroughly)

3. How many times does the graph of ( x - 2)^2 - 1 = y cross the x - axis??

PLease help me and thank you so much in advance lol.

View the original article here