Question

Convert the quadratic y = 2(x−5)^(2) − 10 from vertex form to standard form. (2 points)

Answer 1

Start with y = 2(x − 5)^2 − 10.
Expand (x − 5)^2 = x^2 − 10x + 25, then multiply by 2: 2x^2 − 20x + 50.
Subtract 10: y = 2x^2 − 20x + 40.