Front

What is the distance formula used to find the distance between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²)

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as a fraction a/b, where a and b are integers and b ≠ 0.

Front

What are integers?

Back

Integers are whole numbers that can be positive, negative, or zero, but do not include fractions or decimals.

Front

What is a function in mathematics?

Back

A function is a relation where each input has exactly one output.

Front

How can you determine if a relation is a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship does not maintain a constant ratio between two quantities.

Front

What does 'k' represent in a proportional relationship?

Back

'k' represents the constant of proportionality, which is the ratio of the two quantities.

Front

If the rental fee is $15 plus $3 per day, is this a proportional relationship?

Back

No, it is a non-proportional relationship because there is a fixed starting fee.

Front

What is the Venn diagram used for?

Back

A Venn diagram visually represents the relationships between different sets.