A rotation maps point A(5, 4) to A’(–4, 5). Which describes the rotation?

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x