Write the equation of a line perpendicular to the line y = 2x - 3 that goes through point (4, 3)

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?