A Rectangle Is Bounded by the X-Axis and the Semicircle

question 5

Multiple Choice

A rectangle is bounded by the x-axis and the semicircle (see figure) . Write the area A of the rectangle as a function of x and determine the domain of the function. -5 5

• A) , -5  x  5
• B) , x   0
• C) , -5  x  5
• D) , all real numbers
• E) , x   0