Ordered Pairs
(no calculators)
(no calculators)
If point P (2,3) is dilated from the origin center by a scale factor r=5 what are the coordinate points of P'?
P'(10,15)
If |OQ|=72 and Q is dilated from center O by a scale factor of 3 what is |OQ'|?
216
If A and B are not collinear and have both been dilated from center O by scale factor r=7 what do we know about AB and A'B'?
They are parallel
Given ordered pairs and a scale factor, r, how do you dilate a figure?
Multiply ordered pairs by the scale factor
This ghost isn't very scary you might even call him friendly.
Who is Casper the Friendly Ghost?
If point P(-4,9) is dilated from the origin center by a scale factor r=6 what are the coordinate points of P'?
P'(-36,54)
If |OP|=4 and |OP'|=36 what is the scale factor?
9
Fill in the first blank.
Given a dilation with center O and scale factor r, for any 3 points O, P, and Q such that they are not collinear, the lines PQ and P'Q' are ________ and |PQ|=___|P'Q'|
Parallel
If you are given a figure with no ordered pairs what's the first step when dilating a figure?
Draw straight lines from the center of dilation through the points of the figure
He is the skeleton from The Nightmare Before Christmas who plots to kidnap Santa Clause.
Who is Jack Skellington?
If point P (24,75) is dilated from the origin center by a scale factor r=1/3 what are the coordinate points of P'?
P'(8,25)
If |OT'|=84 and was dilated from center O by a scale factor r=4 what is |OT|?
|OT|=21
Fill in the second blank.
Given a dilation with center O and scale factor r, for any 3 points O, P, and Q such that they are not collinear, the lines PQ and P'Q' are __________ and |PQ|=___|P'Q'|
r
If you are given a figure with no ordered pairs what's the second step when dilating a figure?
Use your compass to make dashes the correct distance away
It's the Great Pumpkin Charlie Brown came out this month and year which is also the same month and year Ms. Koeppen's mom was born (hint: her birthday was 2 weeks ago and she just turned 55)
What is October 1966?
Triangle ABC, A(-4,2), B(11,-6), and C(-14,9), is dilated from center O at the origin by a scale factor r=6. What are the ordered pairs for Triangle A'B'C'?
A'(-24,12)
B'(66,-36)
C'(-126,54)
If |OS|=72 and |OS'|=12 what is the scale factor?
r=1/6 or 0.167
FTS stands for what?
Fundamental Theorem of Similarity
If the scale factor is r=3 how many dashes on the line do you need to make with your compass?
3 dashes
The movie Hocus Pocus came out this year, 3 years before Ms. Koeppen's oldest brother was born (hint: he's 25).
What is 1993?
If point P (9.2,-20) is dilated from the origin center by a scale factor r=2.4 what are the coordinate points of P'?
(22.08,-48)
If R was dilated from center O by a scale factor r=4/5 what do you need to multiply |OR'| by to undo the dilation?
5/4
If A and B have both been dilated from center O by scale factor r=7 and |AB|=6.3 cm what is the length of |A'B'|?
44.1 cm
What's important to remember when dilating a circle?
You need to use enough points/a lot of points
When a villain on Scooby-Doo gets caught they normally say this phrase.
What is "I would've gotten away with it too, if it wasn't for those meddling kids?"