Evaluate $f ( a , 2 )$ for $f ( x , y ) = x ^ { 2 } - y - x y + 5$
A) $a ^ { 2 } - 2 a$
B) $a ^ { 2 } - 2 a + 3$
C) $a ^ { 2 } + 2 a - 2$
D) $a ^ { 2 } - 2 a - 2$
E) $a ^ { 2 } - 2 a + 5$

Question

Evaluate $f ( a , 2 )$ for   $f ( x , y ) = x ^ { 2 } - y - x y + 5$  
A) $a ^ { 2 } - 2 a$
B) $a ^ { 2 } - 2 a + 3$
C) $a ^ { 2 } + 2 a - 2$
D) $a ^ { 2 } - 2 a - 2$
E) $a ^ { 2 } - 2 a + 5$

Quizplus · Accepted Answer

Substituting $a$ for $x$ and $2$ for $y$ in the given function $f(x, y) = x^2 - y - xy + 5$, we get $f(a, 2) = a^2 - 2 - 2a + 5$, which simplifies to $a^2 - 2a + 3$.

Evaluate f(a,2)f ( a , 2 )f(a,2) For f(x,y)=x2−y−xy+5f ( x , y ) = x ^ { 2 } - y - x y + 5f(x,y)=x2−y−xy+5

Evaluate $f ( a , 2 )$ For $f ( x , y ) = x ^ { 2 } - y - x y + 5$