Doubt

[Parvatha varthini Sundaram]

Hey Guys ,

           In Maths,WEEk 4 practise assignment anyone knew how has the maximam area of the field become -bsquare/4a?

         

           Would be helpful.............

          

            Thank you.

[Malabika Guha Mustafi]

We get , y= -  square(b)/4a  +  c ( for maximum value or minimum value after putting x=-b/2a) as follows:-

y= a(xsquare ) + bx+c

= a. square(-b/2a) +   b. (-b/2a) +c

=square(b)/4a  - square(b)/ 2a  + c

= -  square(b)/4a + c [ if you can remember , it is direct formula to get maximum/minimum]

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