advertisement

10.1 – Graphing Quadratic Functions Quadratic Function: y ax 2 bx c Graph the equation y = _______________________ Sketch what the graph looks like: Analyze the equation and compare it to the graph. Write down any observations here: Graph the following two functions: y x 2 3x 4 y x 2 3x 4 What is different about the two equations? What is different about the two graphs? Identify the vertex of each graph and tell whether it is a maximum or a minimum: Without graphing tell whether each equation would open upward or downward and if the vertex is a maximum or minimum: y x 2 3x 1 y x 2 3x 4 2 y 3x 2 4 y 6x 2 2x 8 Make a table of values and graph the follow equations by plotting individual points: x 0 1 2 y y 2x 2 y x2 y x2 (x, y) Sketch and label the three graphs you made and describe what is happening to them: Order the quadratic functions y x 2 , y 4x 2 , and y Homework #35 Pg 553 #1 – 3, 7, 9 – 13, 21 – 30 1 2 x from widest to narrowest: 4 1 2 x 2 x 0 1 2 y 2x 2 (x, y) x y 1 2 x 2 (x, y) 0 2 4