Number Systems
Finding Scale Factor
New image
Congruent, Similar, or Neither
All About Scale Factor
100
A number than CANNOT be written as a fraction or whole number.
What is an irrational number?
100
Preimage: (2, 2) Image: (5, 5)
*Give you answer as a fraction!*
What is 5/2?
100
Preimage: (7, 2)
Scale factor: 10
What is (70, 20)
100
Is the image congruent, similar, or neither?
What is congruent?
100
Determine if the dilation produced and enlargement or a reduction.
SF=31
What is an enlargement?
200
All counting numbers {1,2,3,4....} fit best into what category?
Irrational Numbers, Rational Numbers, Integers, Whole Numbers, Natural Numbers
What is Natural Numbers?
200
Preimage: (7, 8) Image: (56, 64)
What is 8?
200
Preimage: (3, 8)
Scale factor: 5
What is (15, 40)
200
Is the figure similar, congruent, or neither?
What is similar?
200
Determine if the dilation produced and enlargement or a reduction.
What is an enlargement.
300
Which of the following numbers is considered rational? Explain your reasoning.
sqrt17
sqrt121
pi
What is
sqrt121
300
Preimage: (6, 3) Image: (2, 1)
*Give you answer as a fraction!*
What is 1/3?
300
Preimage: (27, 37)
Scale factor: 2
What is (54, 74)
300
Are the figures similar, congruent, or neither?
What is neither?
300
Determine if the dilation produced and enlargement or a reduction.
What is a reduction?
400
A number that is the ONLY NUMBER that can classify as a whole number but is not considered a natural number?
What is the number 0?
400
Preimage: (46, 37) Image: (23, 18.5)
*Give you answer as a fraction!*
What is 1/2?
400
Preimage: (28, 83)
Scale factor: 5
What is (140, 415)
400
Explain how you know two shapes are congruent.
Two shapes are congruent when they are completely the same. Same size, same shape, same angle measures.
400
What is the formula for Scale Factor?
What is Image divided by preimage.
500
All natural numbers and their opposites fit into what number classification?
What is an Integer?
500
Preimage: (53.7, 35.8) Image: (161.1, 107.4)
What is 3?
500
Preimage: (222, 17)
Scale factor: 34
What is (7548, 578)
500
Explain how you know two shapes are similar.
How to the shapes, sizes, and angle measurements change?
Two shapes are similar when they are the exact same shape but different sizes. The angles measurements are exactly the same.
500
How to you find the image given the preimage and the scale factor?
Multiply the preimage times the scale factor.