Special Cases
To recount, we’ve encountered two types of slopes:
- Positive slope: as x increases, y increases.
- Negative slope: as x increases, y decreases.
Zero Slope
- When a graphed line is fully horizontal.
- No rise, all run.
- For as the fraction, the numerator is 0, making the whole fraction 0.
Undefined Slope
- When a graphed line is fully vertical.
- No run, all rise.
- For, as the fraction, then denominator is 0, making the whole fraction undefined.
