Answer:
y = -5x + 6
Step-by-step explanation:
To find the slope of a line you have to use the following formula:
y2 - y1 / x2 - x1
choose any 2 rows for "x" and "y" (it doesn't matter), but "x" and "y" have to come from the same row. (I'll do the third and fourth rows)
x1 = 1
y1 = 1
x2 = 2
y2 = -4
(-4 - 1) / (2 - 1)
-5 / 1
slope (m) = -5
the equation of a line is y = mx + b
m = slope
b = y-intercept
pick any row to plug "x" and "y" into the equation so you can find "b" (I'll choose row three); you already know the slope (m)
1 = -5(1) + b
1 = -5 + b
b = 1 + 5
b = 6
plug everything in to the equation y = mx + b
equation: y = -5x + 6
