Ratio Risa, Yeonah
Constant of Proportionality (Graph)
K Value
Unit Rate
Proportional
Constant of Proportionality (Table or Equation)
Scaling
The number multiplied to relate the first shape to the second.
Line have to go through the origin also it should be straight.
Unit rate is when rates are expressed as a quantity of 1
Difference between both ratios has to be equivalent throughout the whole table
K=y/x
It is proportional when K value is same in table.
x = y/k
For example, if x is 5 and y is 10, the k value would be 2, so the equation will turn out like: 5 = 10/2
Constant of Proportionality is related to K value.
To make a brownie you need 2 chocolate chips and five milk how much you need to make 5 brownies?
This is related to constant of proportionality. This relating because you can know if it is proportional or not by finding constant of proportionality.
For every two cups of milk you need three cups of cocoa powder. for 6cups you need 10cups of cocoa powder. Is it proportional?
It relates to proportional because if it is not proportional there will be no scale factor and it will not work.
If the triangle became twice as big then what is the scale factor?
This relates to constant of proportionality because it is same but constant of proportionality has more specific details.
What is the K value if x is 24 and y is 48?
It related to K vlalue and constant of proportionality. It is just constant of proportionality with word.
What is the unit rate when car goes 20kilometer per an hour?