4.9.2.2 square - sqr( x )

The sqr function - sqr stands for square - squares the argument. If the argument is 1 the function returns 1. if the argument is 2 the function will return 4.

sphere.YPosition = sqr( time );

This will square the time value:

You can scale the slope of the curve with a multiplyer:

sphere.YPosition = sqr( time ) * 0.25;

The slope is only a quarter as steep as before: