Multiple Choice
The area of a circle with radius is given by the power function
. What happens to the area of the circle when the radius is multiplied by 3?
A) The area increases by a factor of 9.
B) The area is also multiplied by 3.
C) The area increases by .
D) Not enough information.
E) The area increases by .
Correct Answer:

Verified
Correct Answer:
Verified
Q109: Find the vertex of the given equation
Q110: Find the x -intercept(s) of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8673/.jpg"
Q111: The graph of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8673/.jpg" alt="The graph
Q112: If <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8673/.jpg" alt="If and
Q113: Solve the equation by using the zero-product
Q115: For the polynomial expression factor out the
Q116: To find the y-intercept of a quadratic
Q117: Use the graph to estimate the vertex
Q118: To find the x-intercepts of a quadratic
Q119: Every quadratic equation has a y-intercept.