The answer is E. Should I pick numbers for a and b?

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- Jul 18th 2013, 07:45 PMasilvester635Solving an equation
The answer is E. Should I pick numbers for a and b?

- Jul 18th 2013, 08:34 PMProve ItRe: Solving an equation
Don't you realise that when you multiply by fractions < 1, the result is smaller than what you started with?

- Jul 19th 2013, 06:06 AMHallsofIvyRe: Solving an equation
No, you

**cannot**just "pick numbers" because finding that, say, if x= 2 and y= 3, f(x)= (1/3)^2= 1/9> (1/3)^3= 1/27 is not sufficient to say that this is true for**all**numbers.