Question 473244
For the vertex, see <a href="http://www.algebra.com/algebra/homework/Polynomials-and-rational-expressions/completing-the-square.solver">this solver</a>



For the x-intercept(s), plug in y=0 and solve for x. You can solve for x using <a href="http://www.algebra.com/algebra/homework/quadratic/quadratic-formula.solver">this solver</a>. Once you find the solutions, remember to state the x-intercept(s) as ordered pairs (since they're points).



For the y-intercept, plug in x=0 and simplify. Basically x=0 quickly simplifies the right side to the constant that is left over (since 0 isn't multiplied by this value). So the y-intercept (0,3) since plugging in x=0 gives us y=3.