There are a few key features to look for when matching a quadratic function with its graph: whether "a," the leading coefficient, is positive or negative to open up or down; the y intercept that is found when x = 0; and the focus of this lesson, which is how many x-intercepts you can expect. The discriminant, which is the value of "b squared minus 4ac," tells us if we can expect zero, one, or two x-intercepts.
Transcript Coming Soon!
Please enter your name.
Are you sure you want to delete this comment?
Experience the 'A-Ha!' moment with the best teachers
whom we hand-picked for you!
M.A. in Secondary Mathematics, Stanford University B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
“Your tutorials are good and you have a personality as well. I hope you have more advanced college level stuff, because I like the way you teach.”
“Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
“You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”