0
Add your answer:
Earn +20 pts
How can you tell when x and y are NOT directly proportional?
When there is at least one pair of x and y whose ratio is different from the ratios for the others.
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.
what ratios can you use to determine whether the relationship is proportional?
look at the ratios and multiply
What are two equivalent ratios called?
They are said to be proportional.
Are the ratios 16 to 18 and 18 to 24 proportional?
yes, they are.
How can you tell when x and y are NOT directly proportional?
When there is at least one pair of x and y whose ratio is different from the ratios for the others.
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.
What is true about ratios for proportional relationships that is not true about ratios for other relationships?
For proportional relationships the ratio is a constant.
what ratios can you use to determine whether the relationship is proportional?
look at the ratios and multiply
How can you tell if two figures are similar?
Two figures are similar if: - The measures of their corresponding angles are equal. - The ratios of the lengths of the corresponding sides are proportional.
What are two equivalent ratios called?
They are said to be proportional.
Are the ratios 8 to 7 and 2 to 28 proportional?
No.
What does it mean for ratios to be proportional?
Two ratios, a:b and c:d are proportional if there is some number x such that a = cx and b = dx. Equivalently, if ad = bc (each is equal to cdx).
Is a pair of ratios a proportion?
Not necessarily.
Are the ratios 16 to 18 and 18 to 24 proportional?
yes, they are.
Are the ratios 3 to 7 and 6 to 14 proportional?
They are equivalent.
Are the ratios 6 to 13 and 12 to 26 proportional?
Yes
