Consider the quadratic function f(x) = 2x2 – 8x – 10.
The x-component of the vertex is
The y-component of the vertex is
7
The discriminant is b2 - 4ac = (-8)2 – (4)(2)(-10) =

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?