which type of quadratic equation is most useful?

Question

Finding y-intercept
is it standard form, vertex form, or factored form

Answer 1

The standard form of a quadratic equation (ax^2 + bx + c) is most useful for finding the y-intercept. This is because the y-intercept is simply the value of the function when x=0, which is easy to determine using the standard form of the equation.