This week I learned how to use slope formula and the different way to write an equation of a line.
Slope formula:
- A simple way to find the slope that works every time
- You can only use it to find a missing coordinate if you have the slope, 1 coordinate and one value from the 2nd coordinate
How to find the slope using slope formula
Find the y-values and the x-values. Plug them into the formula (first y – second y divided by the first x – second x)
How to find part of a coordinate using slope formula
- Fill in what you know
- Simplify what you can
- Cross multiply (one value on each side of the = sign)
- Distribute
- Isolate the variable
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