Which equations have an AROC (average rate of change) greater than three between the interval 2 < x < 4? Choose all that apply. y = 4x + 6 y = 2x^2 y = x y = 1 half to the power of x

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.