At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
Ok what is the difference between the centers?
Would it be 113? @ adamaero
How did you get that answer?
-3-4^2 + 1-9^2
I remember seeing that formula you showed me.
You need two equations (for each circle).
There may be a more straightforward way, but I haven't thought of it.
Can you give me an idea of what I need to do?
I'll foil it out, but I'm not sure that I'm guiding you down the right path anyway...
I took the test, how I did it was by translation. Remember, these are word problems and math problems. What is the translation difference between the two?
do you have the answers? or was that way back
is there a formula for translation difference?
It was my semester exam too, I had to get an extension. No just plain translation, graph it. How far would it be across the board? In units, aka "I translated A up 4 units and across by 2"
Yeah I had to get an extension as well and I have 20 minutes to finish these questions.
so I have to figure out how many units across the y and x it translated?
Ok mine was translated to the left and upwards. Explain the difference. Then what is the difference in dilation? Explain that difference.
what is dilation?
Expansion of an object. Primarily circles.
So what the explanation needs to be is something along the lines of "I proved they were similar by translating _________ and I dilated it ______" Make sense?
not really I get what you mean by dilation but doesnt similar mean the same angles?
Yes, its just larger. A radius of 4 can be dilated to 1/4 aka 1. So what you need to do is find the difference in location of the center point.
from circle c to circle e right?
What is the difference in units of (-3, 1) and (4, 9)? Go X axis first, then Y axis. Then what is the dilation difference? And yes, either way it works.
7 and 8 right?
or is it -7 and 8
Yes, explain it by saying something like "I translated it to the right by 7 on the x-coordinate, moving it from -3 to 4" For example of what you did.
and upwards 8 right?
Yes. Its to the right by 7 then upwards by 8 I think. Word it out. Then the dilation is 4, what is 3/4 of four?
Yes. That is your answer. Word it out.
3 or .75
Something like "I proved they were similar by moving Circle C to the right by 7, moving -3 to 4. I then moved it upwards by 8...(fill in similar to first half here).. The dilation difference is 3/4.
Its 3 not .75
I said it by saying one can be translated to the other then dilated.
thanks so much dude
Your welcome. Stay frosty.