How do I work a & b?

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?

Find all critical values for the function f(r)=2r/(6r^2+8) and then list them (separated by commas) in the box below. find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+10 . 0n each of the indicated intervals. enter 'none' for any absolute extrema that does not exist. interval = [1,4] what is the absolute min interval = [1,8]. what is the absolute min