Write a linear equation in the form of y=my+b for the following table.
X,4,8,12
Y,-7,-21,-35
The equation from the table is:y=__x+__
y=-2.5x-3
m = slope = (-35+7) / (12-4) = -28/8 = -3.5 (disagree with Bot)
or y = (-21+7) / 4 = -14/4 = -3.5 again !
y = -3.5 x + b put in a point now
-7 = -3.5 * 4 + b
-7 + 14 = b = 7
so
y = -3.5 x + 7
humm.