Math 1 Chapter 4 Review

Front

What is the result of simplifying the expression (2a^2b^4z)(6a^3b^2z^5)?

Back

12a^5b^6z^6

Front

What type of correlation is represented by a graph where as one variable increases, the other variable also increases?

Back

Positive correlation

Front

Back

x = 12

Front

What can be said about the slopes of parallel lines?

Back

The slopes of parallel lines are the same.

Front

What is the definition of a positive correlation in statistics?

Back

A relationship between two variables where both variables move in the same direction.

Front

What is the definition of a negative correlation in statistics?

Back

A relationship between two variables where one variable increases as the other decreases.

Front

What does it mean to simplify an expression in mathematics?

Back

To reduce the expression to its simplest form without changing its value.

Front

What is the formula for the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1) for two points (x1, y1) and (x2, y2).

Front

What is the relationship between the slopes of perpendicular lines?

Back

The slopes of perpendicular lines are opposite reciprocals.

Front

What is the definition of a variable in mathematics?

Back

A symbol used to represent an unknown value.