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Q: How do you determine whether a proportion is true?
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What is to determine all the values of the variables that make the proportion true?

It is finding all the solutions of a proportional relationship.


Is this statement true or falseThere is not enough information to determine whether the quadrilateral shown is a parallelogram?

true


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True.


How might how might a scientist determine whether a trait is sex link by observing the offspring of several genetic crosses?

By observing the proportion of affected offspring and whether males or females are more affected.


How does graphing relationships help you determine whether the relationship is proportional or not?

If the points lie on a straight line through the origin, the two variables are in direct proportion.


Can you determine whether the inverse of a function is a function by using the horizontal line test?

true


Determine whether the following statement is true or false South Carolina borders North Carolina Georgia and Tennessee?

true


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How do you solve the proportion of something?

There cannot be a "proportion of something": proportion is a relationship between two things, and how you solve it depends on whether they (or their transformations) are in direct proportion or inverse proportion.


How can you determine if a graph forms a direct proportion?

If it is a straight line through the origin then it represents a direct proportion.


Determine whether the ratios 9 15 and 6 10 form a proportion Justify your answer?

The fractions are proportional and their cross products are equal


How can you tell if a proportion is false?

Multiply the cross products, and see if they are equal. If they are equal, the proportion is true. If they are unequal, the proportion is false.