It’d be neat if y’all could do dis ^

In which form is the following function written? y = - 2(x – 3)(x + 5)

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?

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)