Question:

Given that -5 ≤ x ≤ 5 and -10 ≤ y ≤ -2, find

(a) the smallest possible value of $\displaystyle 3x-2y$,

(b) the greatest possible value of $\displaystyle y^2-x^2$

Is there any mathematical way to solve this?

Thanks

Printable View

- Oct 2nd 2011, 03:57 AMFailInMathsGiven that -5≤x≤5 and -10≤y≤-2, find
Question:

Given that -5 ≤ x ≤ 5 and -10 ≤ y ≤ -2, find

(a) the smallest possible value of $\displaystyle 3x-2y$,

(b) the greatest possible value of $\displaystyle y^2-x^2$

Is there any mathematical way to solve this?

Thanks - Oct 2nd 2011, 04:24 AMmr fantasticRe: Given that -5≤x≤5 and -10≤y≤-2, find
- Oct 2nd 2011, 05:12 AMFailInMathsRe: Given that -5≤x≤5 and -10≤y≤-2, find