How do you use the ZERO of functions on a graphing calculator? Which of the following equations has a graph that is narrower than the graph of y = 2x^2 + 3? (a) y = 2x^2 - 3 (b) y = 3x^2+ 2 (c) y = 0.5x^2 + 3 (d) y = 0.5x^2 - 2 W...
I would like to know how to find the equation of a quadratic function from its graph, including when it does not cut thex-axis. Thanks. Modeling This is a good question because it goes to the heart of a lot of "real" math. Often we have a set of data points from observati...