Which one of the following statements concerning waves is false?.

Why do you think electric energy for households is generally supplied by power plants instead of by an electric generator at home.

When graphing a linear equation that is written in the form y=mx+b, the variable m represents the y-intercept. assuming that b> 0, which of the following best describes how reversing the sign of b would affect the graph? a) the new line will be shifted down b units b) the new line will be shifted down b x 2 units c) the new line will be a perfect reflection across the x-axis d) the new line will be a perfect reflection across the y-axis

All of the following are free tools to you prepare for the sat except