Envision Algebra 1_Topic 3 and 4

Front

How is the slope of a line calculated?

Back

Change in y over change in x.

Front

What is the purpose of a coordinate plane?

Back

To plot points.

Front

Which of the following is an example of a variable?

Back

x.

Front

What does a variable typically represent in an equation?

Back

An unknown number.

Front

What is a variable?

Back

A letter representing an unknown number.

Front

What is the formula for the slope of a line?

Back

m = (y2 - y1) / (x2 - x1).

Front

What are the axes in a coordinate plane?

Back

The horizontal axis (x-axis) and the vertical axis (y-axis).

Front

What does the x-coordinate represent in a point (x, y)?

Back

The horizontal position of the point.

Front

What does the y-coordinate represent in a point (x, y)?

Back

The vertical position of the point.

Front

What is the difference between a constant and a variable?

Back

A constant is a fixed value, while a variable can change.