Which equation shows a proportional relationship? y= 1/2 x - 1/2

y = 2x -2

y= 1/2x

y=2/x

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Which representation has a constant of variation of -2.5

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?