Constant of proportionality

Flashcard
•
Mathematics
•
6th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the constant of proportionality?
Back
The constant of proportionality is a constant value that relates two proportional quantities. It is the ratio of one quantity to another when they are directly proportional.
2.
FLASHCARD QUESTION
Front
If y is directly proportional to x, what is the formula to express this relationship?
Back
y = kx, where k is the constant of proportionality.
3.
FLASHCARD QUESTION
Front
What does it mean if the constant of proportionality is 7.5?
Back
It means that for every unit increase in x, y increases by 7.5 units.
4.
FLASHCARD QUESTION
Front
How do you find the constant of proportionality from a table of values?
Back
Divide the value of y by the corresponding value of x for any pair of values.
5.
FLASHCARD QUESTION
Front
If the constant of proportionality is 3, what is the value of y when x = 5?
Back
y = 3 * 5 = 15.
6.
FLASHCARD QUESTION
Front
What is the constant of proportionality if y = 45 mph when x = 1?
Back
The constant of proportionality is 45 mph.
7.
FLASHCARD QUESTION
Front
If y = 16 when x = 1, what is the constant of proportionality?
Back
The constant of proportionality is 16.
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