# Back to slope (Inter)

- Author:
- Arpit Kesharwani, Tim Brzezinski

## Using Slope, WARM UP

## Warm up

Addis Baba has a line and the points are; (89, 99) and the other point is (98, 200). What is the slope. You may use a graph (it's below). But the graph will take a long time!!!!!!!!

## OPTIONAL GRAPH

## y2 - y1 Equation

In the previous problem, you had many problems with plotting and then finding the slope. Now, you can just subtract and DIVIDE!!!!
If we do y2= 9.
If we have Y1 =1
If we have x2 = 8
If we have x1 = 1
Let's find the slope.
9-1 = 8
8 - 1 =7
So slope is 8/7!

## A video

## Classwork

Laguene has two points; (8,10) and (7,9) what is the slope?

Laguene has two points; (19,20) and (38,40). What is the slope?

Homework