Finding Distance on a Graph Using the Pythagorean Theorem and the Distance Formula
The Pythagorean Theorem can be used to solve a distance problem on the coordinate plane. The same problem is also solved using the distance formula.
Practical Problem: Furniture Salesperson Earnings
Using the slope-intercept form to solve a practical problem involving calculating earnings.
Graphing Points on the Coordinate Plane
How to graph points on the coordinate plane.
Slope Formula, The
The slope formula enables you to use two ordered pairs to find slope. Sub notation is used for clarity.
Horizontal and Vertical Lines Have No Slope
Plotting and spotting zero slope lines, both horizontal and vertical.
Identifying the Slope and y-intercept in an Equation
How to identify and the y-intercept in an equation.
Finding Slope and Negative Slope
Plotting negative slope compared with plotting positive slope.
Midpoint Formula, The
The midway formula can be used to find the coordinates of a point that is half way between two given points.
Applying the Slope Formula to a Graph
Using the slope formula to plot a graph.
Slope-intercept Form: y = mx b
The slope-intercept form: y = mx b. Problems about rate of change involving two variables are solved using the slope-intercept form of equation.