Decide whether the function is a polynomial function. if it is write the function in standard form and state the degree and leading coefficient.

1. f(x) = 3x² -2x ³+ 4x

On a piece of paper graph f(x)=5•(0.4)^x

If square root x = -7, then x= -49 true or false

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