Slope/Linear Equation Flashcard Review

Front

What is the formula to calculate the slope of a line that passes through two points (x1, y1) and (x2, y2)?

Back

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

Front

What does a vertical line represent in terms of its equation?

Back

A vertical line has an equation of the form x = a, where 'a' is a constant.

Front

What does a horizontal line represent in terms of its equation?

Back

A horizontal line has an equation of the form y = b, where 'b' is a constant.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

In the equation y = mx + b, what does 'b' represent?

Back

'b' represents the y-intercept of the line.

Front

In the equation y = -3x + 7, what is the slope?

Back

The slope is -3.

Front

If a line has a slope of 0, what can you say about its graph?

Back

The graph is a horizontal line.

Front

If a line has an undefined slope, what can you say about its graph?

Back

The graph is a vertical line.

Front

What is the y-intercept of the line represented by the equation y = 2x + 5?

Back

The y-intercept is 5.