Evaluate the expression for the given values.
-$\frac { \sqrt { x } } { 2 y } - \frac { y } { x }$ when x=4 and y=-1
A)$\frac { 3 } { 4 }$
B) -$\frac { 3 } { 2 }$
C) -$\frac { 5 } { 4 }$
D) -$\frac { 3 } { 4 }$

Question

Evaluate the expression for the given values.
-$\frac { \sqrt { x } } { 2 y } - \frac { y } { x }$ when  x=4  and  y=-1 
A)$\frac { 3 } { 4 }$
B) -$\frac { 3 } { 2 }$
C) -$\frac { 5 } { 4 }$
D) -$\frac { 3 } { 4 }$

Quizplus · Accepted Answer

Substituting x=4 and y=-1 into the expression gives $\frac{\sqrt{4}}{2(-1)} - \frac{-1}{4} = \frac{2}{-2} + \frac{1}{4} = -1 + \frac{1}{4} = -\frac{3}{4}$.

Evaluate the Expression for the Given Values x2y−yx\frac { \sqrt { x } } { 2 y } - \frac { y } { x }2yx​​−xy​

Evaluate the Expression for the Given Values $\frac { \sqrt { x } } { 2 y } - \frac { y } { x }$