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vivalakodaBest ResponseYou've already chosen the best response.0
Y=0.2x^2+1.62x+4 is the quadratic equation, I'm trying to find the discriminant but I'm stuck on how.
 one year ago

MathmuseBest ResponseYou've already chosen the best response.0
take what ever is under the root sign from the quadratic formula: \[Dis =b^24ab\] this will give you clues as to how many roots the parabola has
 one year ago

MathmuseBest ResponseYou've already chosen the best response.0
the equation you have listed: \[y= 0.2x^2+1.62x+4\] is not the quadratic equation, but rather the standard form of a quadratic function
 one year ago

phiBest ResponseYou've already chosen the best response.1
match your equation to the standard from \[ a x^2 +b x+c =0 \] in your case a= 0.2, b=1.62 and c=4 now use the formula (see Mathmuse post) See http://www.mathwarehouse.com/quadratic/discriminantinquadraticequation.php
 one year ago
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