Question 681385
The pattern is the subtraction by 2
4-2 = 2 - 2 = 0 - 2 = -2 - 2 = -4
or as an equation
{{{highlight_green(y = x-2)}}}
...
Plug in the given x values and solve the equation for y
x-2 = y
-------- | (x,y)
1-2 = -1 (1, -1)
2-2 = 0  (2, 0)
3-2 = 1  (3, 1)
4-2 = 2  (4, 2)
...
Table with values from above
x | y
1 | -1
2 | 0
3 | 1
4 | 2
...
slope:  take any two points and apply the slope formula:
Using (1,-1) and (2,0)
{{{(y1-y2)/(x1-x2) = (-1-0)/(1-2) = -1/-1 = highlight_green(1)}}}
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rise is -1, run is -1
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