# Graph and Order Quadratic Functions

Three quadratic functions are shown below.

Order the group of quadratic functions from widest to narrowest graph.

y = (⅓)x²

y = (-½)x²

y = -9x²

 Sep 26, 2013 Compare Quadratic Functions by: Staff Answer Part I Order the group of quadratic functions from widest to narrowest graph. Look at the absolute value of each of the coefficients y = -9x² the coefficient is -9, the absolute value is 9 y = 1/3x² the coefficient is 1/3, the absolute value is 1/3 y = -1/2x² the coefficient is -1/2, the absolute value is 1/2 The coefficient with the largest absolute value is the most narrow graph The coefficient with the smallest absolute value is the widest graph ordering the functions from widest to most narrow y = (⅓)x², widest y = (-½)x² y = -9x², most narrow ------------------------------------------------------

 Sep 26, 2013 Compare Quadratic Functions by: Staff ------------------------------------------------------ Part II A graph of the three functions is shown below: Thanks for writing. Staff www.solving-math-problems.com