Math Foundations · Inequalities and Graphs
Coordinate Plane — Practice Problems and Worked Solutions
Turn ordered pairs into horizontal and vertical movement.
The formulas you need here
Slope between two points
- What it says
- How much the line climbs for each step it takes to the right.
- When to reach for it
- Two points, and you need the steepness or the equation of the line through them.
- Watch out
- Both differences must be taken in the same order. Subtracting y one way and x the other flips the sign.
This same ratio, with the two points brought together, becomes the derivative.
16 worked problems
Every step is generated and checked by a computer algebra system.
- 1.
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