Math 8 Semester 1 Exam Review

Front

Is this mapping a function or not a function?

Back

Not a Function

Front

The set of irrational numbers includes all of the following except -

Back

(Provide examples of irrational numbers such as √2, π, and a rational number like 1/2)

Front

Between which two whole numbers is the square root of 20?

Back

4 and 5

Front

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Back

D: {0, 1, 2, -4}, R: {1, -3, -4}

Front

Which set of values is a function? (9,5) (10,5) (9,-5) (10,-5), (3,4) (4,-3) (7,4) (3, 8), (6,-5) (7, -3) (8, -1) (9, 1), (2, -2) (5, 9) (5, -7) (1, 4)

Back

(6,-5) (7, -3) (8, -1) (9, 1)

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is the domain of a function?

Back

The set of all possible input values (x-values) for the function.

Front

What is the range of a function?

Back

The set of all possible output values (y-values) for the function.

Front

How do you determine if a relation is a function using the vertical line test?

Back

If a vertical line intersects the graph at more than one point, it is not a function.

Front

What are rational numbers?

Back

Numbers that can be expressed as a fraction of two integers.