What is the growth or decay factor for a situation with 10% decay?

Which is f(5) for the function –2x2 + 2x - 3?

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

What is mean median mode and range?