Question 828391
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the given data points fall on the same line. 
you can verify this fact by plugging the following list of the given data points:
0,-8, 1,-7, 2,-6, 3,-5, 4,-4 
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into this linear regression solver:
https://sooeet.com/math/linear-regression.php
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linear regression model:
y-intercept: -8
slope: 1
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answer:
a rule that represents the function, is the slope-intercept form of the linear equation:
y = x - 8
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you can also verify this linear relationship by calculating the slope between each two data-points like so:
m = (y2 - y1)/(x2 - x1)
all such slopes are 1 because all points are on the same line.
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Solve and graph linear equations:
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Solve quadratic equations, quadratic formula:
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Solve systems of linear equations up to 6-equations 6-variables:
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