# Work out the values of a, b and c

• May 21st 2012, 09:13 AM
ArtemisLux
Work out the values of a, b and c
I feel stupid: six years of high-school math and I still can't solve this problem.
Hopefully, there is someone on this forum who can!

Problem:

Let V(p) = ap2+ bp + c

V(0) = 0 and V(1) = 0.

Work out (without a calculator) the values of a, b and c.
• May 21st 2012, 09:45 AM
Goku
Re: Work out the values of a, b and c
$V(0) = a(0)^2+b(0)+c = c = 0$

now you do the same for V(1) and then solve for a and b
• May 22nd 2012, 10:26 AM
HallsofIvy
Re: Work out the values of a, b and c
However, in general, and in this problem in particular, two equations are not enough to determine three values. There are an infinite number of values of a and b that, with c= 0, satisfy these conditions.