Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chapter 9 Algebra

Solving Quadratic Equations

Quadratic Function a nonlinear function that can be written in the standard form F(x) = ax² + bx + c where a ≠ 0
Completing the square A method for solving quadratic equations; in this method, a constant c is added to the expression x² + bx so that x² + bx is a perfect square trinomial
Quadratic Formula The formula below that can be used to find the real solutions of the quadratic equation ax² + bx + c where a ≠ 0 and b² - 4ac ≥ 0
Discriminant The expression b² - 4ac of the associated equation ax² + bx + c = 0; the expression under the radical sign, b² - 4a; used to determine the number of real solutions of a quadratic equation
Roots The solutions of a polynomial equation
Square Root If b² = a, then b is this of a. The radical sign, √, represents this
Zero (of a function) An x-value for which f(x) = 0; a zero is located at the x-int of the graph of the function
Created by: 15juangra