Suppose that y varies inversely with x, and y = 0.2 when x = 2. what is an equation for the inverse variation?

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

How can you find the mean absolute deviation (mad) for this set of data?

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0