You have estimated the following equation: test score - 607.3 +3.85 income -0.0423 income 2, test score is the average of the reading and math scores on the stanford 9 standardized test administered to sth grade students in 420 california school districts in 1998 and 1999. income is the average annual per capita income in the school district, measured in thousands of 1998 dollars. the equation: 6. interpret the model carefully. 1. find the average income of a family

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:

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are

you save $70

discount would be 35% off

step-by-step explanation: