Solve the problem.
-The area of a square with side x is given by the function $$A ( x ) = x ^ { 2 }$$
A) 20 square feet
B) 60 square feet
C) 100 square feet
D) 40 square feet

Question

Quizplus · Accepted Answer

We can solve for the side length of the square by taking the square root of the area function: $x=\sqrt{A(x)}$. Plugging in the answer choices for $A(x)$, we find that only choice C results in a whole number for $x$. Therefore, the best choice is C with an area of 100 square feet.

Solve the Problem A(x)=x2A ( x ) = x ^ { 2 }A(x)=x2

Solve the Problem $A ( x ) = x ^ { 2 }$