5/3 Do Now Quadratic Functions

Practice quadratic functions! Graphing, matching, and finding vertices.

Talking About QuadraticsI recommend you take a screenshot of this image for your notes. Parts of a Parabola Identify the important features of the graph. Refer to any x-intercept as a solution. vertex y-intercept axis of symmetry solution solution Sort the graphs according to the "a" value of the equation. Remember what happens to the graph of a function if the equation starts with a NEGATIVE "a" Positive "a" Negative "a" Matching Graphs to Equations in Vertex Form: y = (x - h)2+ k Matching Graphs to Equations in Factored Form Hint: Use those x-intercepts! Vertex vs. Intercept Form Why do you think some graphs can be represented by equations in Vertex Form but not Intercept Form? What is the vertex of the following equation (remember to find axis of symmetry first!)? (-3, -13) (3, -6) (-6, -13) What is the vertex of the following equation? (Remember to find axis of symmetry first!) (0, 8) (-1, 8) (-1, 0) What is the vertex of the following equation? (Remember to find axis of symmetry first!) (0, 9) (-3, 9) (0, -3) Write the equation for this graph using any of the 3 forms. Challenge yourself to use more than one form!