# Line test

- Author:
- Hedy Lim

## Read the instructions!

You will be given the equation of a straight line, in general form
* Drag the points A and B to the point where y-intercept exist
* Look at the value of , where is the gradient of the line.
rise = vertical movement
run = horizontal movement
* Then drag one of the point (A or B) follow how many steps vertically and continued horizontally.
* Drag both points to the y-intercept
* Value of is -3, it means rise = -3 and run = 1, or rise = 3 and run = -1
* So, drag on point A or B:
* 3 steps up (vertically) and 1 step to the left (horizontally) or
* 3 steps down (vertically) and 1 step to the right (horizontally)
* When the statement

**Example**: The line**"Great Job :)"**pops up, it means your answer is correct. Please try 5 - 10 times, until you get the idea.