https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:intro-parabolas/v/parabolas-intro 2021-05-14T17:03:12Z Parabolas intro Graphs of quadratic functions all have the same shape which we call "parabola." All parabolas have shared characteristics. For example, they are all symmetric about a line that passes through their vertex. This video covers this and other basic facts about parabolas. video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Parabolas intro Graphs of quadratic functions all have the same shape which we call "parabola." All parabolas have shared characteristics. For example, they are all symmetric about a line that passes through their vertex. This video covers this and other basic facts about parabolas. https://cdn.kastatic.org/ka-youtube-converted/BGz3pkoGPag.mp4/BGz3pkoGPag.mp4 494 Intro to parabolas https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:intro-parabolas/e/parabolas-intro 2026-04-15T14:40:40.016885978Z Parabolas intro Make sure you understand the basic features of parabolas: vertex, axis of symmetry, intercepts, parabolas that "open up" or "open down." Tomer Gal exercise https://www.khanacademy.org/math/algebra-1-tx-teks-imra-2026-publisher-initiated-changes/x77e86bfa312010ae:investigation-and-application-of-exponential-functions/x77e86bfa312010ae:intro-to-parabolas/a/zeros-of-quadratic-functions 2026-07-20T22:20:04.382915511Z Zeros of quadratic functions (IMRA 2026 publisher-initiated change) Find zeros of a quadratic function from its graph. Publisher-initiated change. For IMRA review. article