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An arbitrary variable (x) is equal to a constant (k) times another variable (y).
Formula: x=ky
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Is y-2.5x a proportional relationship or no?
no a proportional relationship is y / x = 5
Is it true that the graph of a proportional relationship does not include the origin?
It is true in the case of inversely proportional relationship.
How can you use a table to decide if a relationship is proportional?
If the ratio between each pair of values is the same then the relationship is proportional. If even one of the ratios is different then it is not proportional.
When a rate of change varies from point to point the relationship is what?
it is a proportional relationship because a proportional relationship is known as a relationship between two quantities in which the ratio of one quantity to the other quantity is constant.
How can you tell from the graph of Molly's garden on the previous slide that it represents a proportional relationship?
The graph of a proportional relationship has the same unit rate, is a straight line, and starts at the origin.
How is a proportional and non-proportional relationship different?
Proportional is when it is proportional.
What is directly and inversely proportional relationship?
Directly proportional relationship is F=ma, F is directly proportional to a. Inversely proportional relationship is v=r/t, v is inversely proportional to t.
Is y-2.5x a proportional relationship or no?
no a proportional relationship is y / x = 5
How can you represent a proportional relationship using an equation?
You cannot represent a proportional relationship using an equation.
Is it true that the graph of a proportional relationship does not include the origin?
It is true in the case of inversely proportional relationship.
How can you use a table to decide if a relationship is proportional?
If the ratio between each pair of values is the same then the relationship is proportional. If even one of the ratios is different then it is not proportional.
Does the graph represent a proportional or non-proportional liner relationship How do you know?
If the graph is a straight line through the origin, sloping upwards to the right, then it is a proportional linear relationship.
What is the definition of Inverse Proportionality?
y is inversely proportional to x if it is proportional to 1/x.
What is an example of proportional relationship?
they are equivalent
What type of relationship does increased distance and decrease gravity show?
Inversely proportional
Which statement is true of the relationship between distance and gravity?
inversely proportional
Do linear graphs represent proportional relationships?
Do all linear graphs have proportional relationship
