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


quadratic function a second degree polynomial function where a, b, and c are real numbers
axis of symmetry line through the graph of a parabola that divides the graph into two congruent halves
vertex the axis of symmetry will intersect a parabola at this point
maximum/minimum value the y-coordinate of the vertex of a quadratic function
quadratic equations quadratic functions that are set equal to a value
roots solutions of a quadratic equation
FOIL method stands for: first, inner, outer, last. Uses the distributive property to multiply binomials.
pure imaginary numbers square roots of negative real numbers
completing the square manipulating the equation until one side is a perfect square, then solving using the square root property
quadratic formula a formula that can solve any quadratic equation. this formula can be derived by solving the standard form of a quadratic equation.
discriminant the part of the quadratic formula that is under the square root sign
quadratic term the "ax^2" in a quadratic funtion
linear term the "bx" in a quadratic function
constant term the "c" in a quadratic function
parabola the graph of a quadratic function
zeros the x-intercepts of a parabola.
factored form 0= a(x - p)(x - q)
imaginary unit i defined to be "i^2 = -1".
complex number when a real number and an imaginary number cannot be combined so the equation is left alone. example: 2+4i
complex conjugates two complex numbers of the form of a + bi and a - bi. the product of this is always a real number
Created by: sethweir