<span>The descriptors used to interpret a scatterplot are strength, association and trends. The strength determines how closely the dots fall to the line, the association is the general direction in which the dots fall, and the trend or shape lets one know if the graph is linear or non-linear.</span>
<span>3 + ((-5) + 6) = (3 + (-5)) + 6
It's </span>associative property of addition
The associative property of addition states that you can add regardless of how the numbers are grouped, result will state the same.
1/2x - 2/5x = -2
1/10x = -2
x = -20
Y = 2x + 1
y = 2x - 1
so the 1st one has a y int of 1 and the second one has a y int of -1...so the original line will shift down 2 units