Writing Linear Equations and Applications

Front

What is a linear equation?

Back

Front

What does the slope of a line represent?

Back

The slope of a line represents the rate of change of y with respect to x. It indicates how steep the line is and the direction it goes (positive slope goes up, negative slope goes down).

Front

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

Back

Front

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

Back

Front

What is the y-intercept of a linear equation?

Back

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope but different y-intercepts. They will never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1. This means one slope is the negative reciprocal of the other.

Front

How do you convert from point-slope form to slope-intercept form?

Back

Front

What is direct variation?

Back

Front

How do you determine if a relationship is a direct variation?

Back