Help please and explain how to find the answer I’m struggling on how to find if it’s a reflection or a rotation

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Is there a direction u in which the rate of change of f(x, y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.