Math 8 Semester 1 Review

Front

Simplify the expression: 2x + 7(x - 5) - 4

Back

9x - 39

Front

What is the DOMAIN of the function represented by the set of values?

Back

{-5, -2, 1, 4}

Front

Between what two whole numbers does the √449 fall?

Back

21 and 22

Front

What is the range of the table represented by the set of values?

Back

{-4, 0, 1, 3}

Front

Which point on the number line is closest to the approximate value of \sqrt{75}?

Back

point N

Front

What is the definition of a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What does it mean for two numbers to be in proportion?

Back

Two numbers are in proportion if their ratios are equal.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the definition of a function?

Back

A relation that assigns exactly one output for each input.