Question

Considere a função f (x,y) = x² - y / x + 4y. Determine o valor de f (2, 1/2).

Answer 1

f(2,1/2) = 2² -1/2 =  4/1- 1/2 =     8 -1  /2 = 7/2

f(2,1/2) =2+4 * 1/2 = 2+2 = 4

f(2,1/2) = 7/2     =  7  *  1 
                4          2     4

  f (2,1/2) =7/8