Heyy i hope u all had a good day! but can someone help me!

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2