Problem 149 of 7
Use coordinates to describe similarity from circle (x+5)^2+(y-3)^2=49 to circle (x+5)^2+(y-3)^2=1.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
map center and radius via transformation.
Hidden until you reveal it.
Circle equations or coordinate features must provide centers and radii.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Read centers and radii from coordinates or equations.
2. Find the translation vector between centers.
3. Compute target radius divided by original radius.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Scale factors based on area ratios.