Open the Discriminant interactive figure, which is available in the Video & Resource Library of MyLab Math
Question:
Open the “Discriminant” interactive figure, which is available in the Video & Resource Library of MyLab Math (under Sullivan Guided Visualizations) or at bit.ly/3raFUGB. Be sure to check the “Discriminant” box.
(a) S et the value of a to − 1, b to − 1, and c to 2. How many x -intercepts does the graph of the quadratic function have?
(b) S et the value of a to − 1, b to − 1, and c to 2. Determine the value of the discriminant.
(c) Set the value of a to 4, b to 4, and c to 1. How many x -intercepts does the graph of the quadratic function have?
(d) Set the value of a to 4, b to 4, and c to 1. Determine the value of the discriminant.
(e) S et the value of a to − 2, b to 2, and c to − 1. How many x-intercepts does the graph of the quadratic function have?
(f) S et the value of a to − 2, b to 2, and c to − 1. Determine the value of the discriminant.
(g) Suppose the value of the discriminant of a quadratic function is 8. How many x-intercepts will the graph of the quadratic function have?
Step by Step Answer:
a To determine the number of xintercepts of a quadratic function we need to consider the discriminant In this case the values are a 1 b 1 and c 2 By u...View the full answer
Precalculus Concepts Through Functions A Unit Circle Approach To Trigonometry
ISBN: 9780137945139
5th Edition
Authors: Michael Sullivan
