A triangle has points A(2,1), B(3,4) and C(5,2) and a center of dilation at (0,0). It is dilated by a scale factor of 2. What are the coordinates of C'?
(10,4)
Oops!
Check
Okay!
Check
15
If we wanted to figure out the center of dilation for two triangles, how could we find it?
Draw rays through each corresponding set of vertices and see where they intersect.
Oops!
Check
Okay!
Check
banana
Go to last place!
Oops!
gold
Win 50 points!
Okay!
fairy
Take points!
5
10
15
20
25
banana
Go to last place!
Oops!
15
What is the center of dilation in this image?
(0,0)
Oops!
Check
Okay!
Check
15
S' is a dilation of S. Does this dilation have a scale factor greater than 1 or less than 1?
Greater than 1
Oops!
Check
Okay!
Check
15
A dilation with a scale factor greater than 1 is called an __________
Enlargement
Oops!
Check
Okay!
Check
heart
Other team wins 10 points!
Oops!
fairy
Take points!
5
10
15
20
25
rocket
Go to first place!
Okay!
thief
Give points!
5
10
15
20
25
15
If you dilate DEF with a center of dilation at (0,0) and a scale factor of 1/2, what are the coordinates of D'?
(1,3)
Oops!
Check
Okay!
Check
15
A dilation with a scale factor between 0 and 1 is called a ____________
Reduction
Oops!
Check
Okay!
Check
seesaw
Swap points!
Oops!
gift
Win 15 points!
Okay!
fairy
Take points!
5
10
15
20
25
baam
Lose 10 points!
Oops!
15
A shape is dilated by a scale factor of 3. How can we represent this algebraically? (x,y) -----> (____,____)
(x,y) -----> (3x,3y)
Oops!
Check
Okay!
Check
15
What is the scale factor for this dilation?
2
Oops!
Check
Okay!
Check
15
What is the scale factor of this dilation?
2
Oops!
Check
Okay!
Check
15
If this shape is dilated by a scale factor of 3 with a center of dilation at (0,0), what are the coordinates of C'?
(3,6)
Oops!
Check
Okay!
Check
15
A triangle is dilated by a scale factor of 1/2. How can we represent this algebraically? (x,y) ----> (_____,____)
