8th grade 1st semester Review Final

Front

What are natural numbers?

Back

Regular counting numbers.

Front

What key represents the 'negative' sign?

Back

(-) (the minus sign)

Front

Back

k = 14 or k = -14.

Front

What key do you use to enter the variable 'x'?

Back

The key next to the alpha key.

Front

When determining if a relation represents a function, which is true?

Back

The x values cannot repeat; we only care about the x values.

Front

What are integers?

Back

Whole numbers that can be positive, negative, or zero.

Front

Define a function in mathematics.

Back

A relation where each input has exactly one output.

Front

What is the difference between a relation and a function?

Back

A relation can have multiple outputs for a single input, while a function cannot.

Front

What is the absolute value of a number?

Back

The distance of that number from zero on the number line, always positive.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.