Question

A quadratic equation is written in four equivalent forms below.

Answer 1

IV is the most useful (even though all will work)
To find the y-intercept, take x=0 and substitute it into the equations.

We can see that if x=0, you can very easily observe that option IV reduces to
y = 0 + 0 - 24 = -24.
Hence (0,-24) is the y-intercept