Extra Credit #6 - graphing lines and slope

Front

What does the 'm' represent in the slope-intercept form of a linear equation?

Back

Slope

Front

What is the formula to calculate the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the y-intercept in the equation y = mx + b?

Back

The y-intercept is the value of 'b' where the line crosses the y-axis.

Front

If a line has a slope of -5/3, what does this indicate about the line's direction?

Back

The line descends from left to right.

Front

What is the slope of the line represented by the equation y = -4x + 8?

Back

-4

Front

How do you find the slope of a line given two points?

Back

Use the slope formula: (y2 - y1) / (x2 - x1).

Front

What does a slope of 0 indicate about a line?

Back

The line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

The line is vertical.

Front

In the equation y = -4x - 5, what is the slope?

Back

-4

Front

If the slope of a line is positive, what can be said about the line's direction?

Back

The line ascends from left to right.