Graphing y=mx+b

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

What does the variable 'm' represent in the equation y = mx + b?

Back

The slope of the line.

Front

What does the variable 'b' represent in the equation y = mx + b?

Back

The y-intercept of the line.

Front

How do you calculate the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the y-intercept of the line represented by the equation y = -2x + 4?

Back

The y-intercept is 4.

Front

What does it mean if the slope of a line is positive?

Back

The line rises from left to right.

Front

What does it mean if the slope of a line is negative?

Back

The line falls from left to right.

Front

What is the slope of a vertical line?

Back

Undefined.

Front

What is the slope of a horizontal line?

Back

Zero.

Front

If a line crosses the y-axis at (0, 5), what is the y-intercept?

Back

The y-intercept is 5.