$\"\"$

The average national math test scores $\"\"$ for $\"\"$ -year olds can be represented as a function of the national science scores $\"\"$ by $\"\"$ .

Construct the table:

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

Observe the table:

The coordinates are $\"\"$ and $\"\"$ .

Graph:

Graph the function is $\"\"$ .

$\"\"$

$\"\"$

Find the science score:

Science score that correponding to a math score of $\"\"$ .

The total score of the function as $\"\"$ .

$\"\"$ (Subtract $\"\"$ from each side)

$\"\"$ (Apply additive inverse property : $\"\"$ )

$\"\"$ (Divide each side by $\"\"$ )

$\"\"$ (Simplify)

Threfore,the science score is $\"\"$ .

$\"\"$

Find the domain and range:

The domain is the set of science scores and the range is the set of math scores.

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a.Graph:

Graph the function is $\"\"$ .

The coordinates are $\"\"$ and $\"\"$ .

$\"\"$

b.The science score is $\"\"$ .

c.The domain is the set of science scores and the range is the set of math scores.