Quad Function - Max/Min

[Raj]

1. A number is 7 less than double a second number. The sum of the squares of these two numbers is a minimum. Determine the two numbers.

Any help appreciated.

 

[Deleted member 4993]

Show us your work/thoughts - so that we know where should we begin to help you.

 

[Raj]

Let x be one number
Let 2x-7 be the other number.

y = x^2+(2x-7)^2

after this i need help, assuming the above is correct

 

[stapel]

after this i need help...

Hint: Think about the vertex of a parabola. :wink:

Eliz.