The scale factor for a map is 1 cm. = 200 km. On the map, Boston is 1.5 cm. from New York. How far is Boston from New York?
What is 300 km?
On a map, 3 cm represents 8 km. How many kilometers are represented by 9 cm on the map?
What is 72 km?
Has a straight line that passes through the origin
What is a proportional graph?
The store sells 2 shirts for $10. Identify the cost per shirt.
What is $5 per shirt?
(0,0)
What is the origin?
Jeff drew a model of an airplane with a wing of 5 in. He used a scale of 1 inch: 5 feet. Find the actual length of the wing.
What is 25 feet?
If the scale factor is greater than one, the copy will be...
What is larger than the original?
A set of equivalent ratios
What is a proportional relationship?
Identify the constant of proportionality
y=12x
What is 12?
12:3
What is a ratio?
On Fiona's map, the distance from her office to her house measures 3.5 in. The map scale is 1 in. = 16 mi. If Fiona drives back and forth, how many total miles will her round trip be?
What is 112 miles?
The cost per candy is $0.10. Create an equation to represent this situation
What is y=0.10x?
The inverse of a number
What is non proportional?
Find the reciprocal of 12.
What is 1/12?
Figure B is a scale drawing of Figure A. If a side of Figure A is 4 cm and the corresponding side of Figure B is 10 cm, what is the scale factor from Figure A to Figure B?
What is 2.5?
If the scale factor is 1, the copy will be...
What is the same size as the original?
A copy of an image that changes in size but does not change in shape
What is a scaled copy?
x 0 2 4 6
y 0 6 12 18
What is proportional?
How to scale backwards on a image or shape?
What is multiply by the reciprocal?
PQRS is a scaled copy of LMNO. If side LM = 12 inches and the scale factor is 2.5, what is the length of side PQ?
What is 30?
Describe the parts of an equation that is proportional
What is y is the dependent variable, k is the constant of proportionality, x is the independent variable?
A number used a multiplier, which determines how much larger or smaller an object becomes
Identify the equation that represents this graph.
What is y=2x?
The scale factor from Shape A to Shape B is 5, what scaled factor should be applied to go from Shape B to Shape A?
What is multiply by 1/5?