Activity 4.2 The Shot Put

Read page 421 and answer questions 1-4 A vertex of a parabola is its turning point Where it goes from increasing to decreasing or decreasing to increasing Answer questions 5 and 6 in your groups To find the vertex of a general quadratic given by we use the vertex formula given by

Let’s look at number 7 together Read example 1 and answer question 8 Check it using your graphing calculator Definition: The axis of symmetry is a vertical line that divides the parabola into two symmetrical parts It is given by What is the axis of symmetry for our function?

Intercepts of a parabola We learned how to find the y-intercept in 4.1 It is the point (0, c) Let’s find the x-intercepts for our function using our graphing calculators (questions 11 and 12) With the time remaining answer questions 12, 14, and 15