The dot plots represent the results of people being asked to rate their dining experience.

Blue Terrace mean rating = 6.1

Paradiso Grill mean rating = 6.3

Find the mean absolute deviations.

Blue Terrace:
Paradiso Grill:
Which restaurant has the most variation in customer ratings?

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:

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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