Assignment:
Rewrite the quadratic function y=2x^2+8x-5 in standard form by completing the square.
y=_(x+_)^2-_
A quadratic function y=g(x) has x-intercepts at (2,0) and (18,0), and a leading coefficient of -5. Find the vertex of the graph of y=g(x)
(__,__)
Provide complete and step by step solution for the question and show calculations and use formulas.