Ten times the square of a non zero number is equal to forty times the number, what is the number?

What 2 forces allow things to fall ‍♀️‍♀️

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Which is the focus of a parabola with equation y2=4x