What is the standard form of the equation of a quadratic function with roots of 3 and −1 that passes through (1, −10)?
y = 2.5x2 − 5x + 7.5 y = 2.5x2 − 5x − 7.5 y = −2.5x2 − 5x + 7.5 y = −2.5x2 − 5x − 7.5