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Mathematics 18 Online
OpenStudy (anonymous):

what is a quadratic function?

OpenStudy (anonymous):

and effect of a, b, c, h, and k as applicable for the function.

OpenStudy (anonymous):

A quadratic function is a function that has the form: \[a*x^2+b*x+c=0\]

OpenStudy (anonymous):

A quadratic function has a parabolic graph. The constants a, b, and c change the characteristics of the parabola.

OpenStudy (anonymous):

also what is a real-world situation that can be modeled by the function

OpenStudy (anonymous):

Well, a parabola has sort of a U shape. There are plenty of things that can be modeled by a U shaped graph.

Nnesha (nnesha):

if leading coefficient is negative then its not going to be u shape |dw:1420855291912:dw|then its look like thsi

OpenStudy (anonymous):

would a real-world situation be something like a bouncy ball?

OpenStudy (jhannybean):

A real life example is baseball

OpenStudy (jhannybean):

when the batter hits the ball, the ball goes flying in a trajectory, making a parabolic arc.

OpenStudy (jhannybean):

To find the maximum distance, the velocity of the ball, etc, we can use our quadratic formula to find whatever we're asked to look for,

OpenStudy (jhannybean):

Launching a projectile is another good example of utilizing the quadratic equation because as they say "what goes up, must come down",

OpenStudy (anonymous):

Thank you for your help i wish i could give a medal as well.

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