3.Becky is 5 years less than 2times Megan's age. The sum of their ages is 62. Find their ages.
1

∴ Megan's age is 19 and Becky's age is 33 .

452,489 to the nearest thousand is 452,000

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: