Given the directrix of y = 4 and focus of (0, 2), which is the equation of the parabola?

Two parallel lines are crossed by a transversal.what is value of x

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?