Additional PROBLEMS - MathChamber

Name Class Date
9-6
Additional Problems
The Quadratic formula and Discriminate
Problem 1
What are the solutions of x 2 2 3x 2 10 5 0 Use the quadratic
formula.
Problem 2
Jacob tosses a baseball across the playground. The arc
of the ball can be modeled by the equation
y 520.05x 2 1 0.75x 1 4,where x is the horizontal distance
(in meters) from Jacob and y is the height (in meters) of the
ball. How far from Jacob does the ball land
Prentice Hall Algebra 1 • Additional Problems
Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved.
137

Name Class Date
9-6
Additional Problems (continued)
The Quadratic formula and Discriminate
Problem 3
Which method(s) would you choose to solve each equation
a. 2x 2 2 32 5 0
b. 3x 2 2 17x 1 11 5 0
c. x 2 1 7x 1 10 5 0
d. x 2 1 4x 2 15 5 0
e. 23x 2 1 27 5 0
Problem 4
What is the number of real-number solutions of
2x 2 1 7x 2 15 5 0
Prentice Hall Algebra 1 • Additional Problems
Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved.
138