My question is type an equation for the following pattern.
the chart is
x. y

1. | 5.
2.| 2.
3.| -1.
4 |-4
5.|-7

The equation would be y = -3x + 2. The slope is -3 and the y intercept is 2. I found the slope by using the slope formula:

y2 - y1              2 - 5
= = -3 
x2 - x1              2 - 1

I found the y intercept by looking at the graph and finding the point where the x and y values are the same.