lprileyrock lprileyrock

12-07-2016
Mathematics

Answered

please help me!!

which equation best describes the relationship between the values x and y shown in the table?

x y

-1 -7

0 -5

2 -1

4 3

Verified Answer :

texaschic101 texaschic101

12-07-2016

slope = (-5 - (-7) / (0 - (-1) = (-5 + 7) / (0 + 1) = 2

y = mx + b
slope(m) = 2
(-1,-7)...x = -1 and y = -7
time to sub
-7 = 2(-1) + b
-7 = -2 + b
-7 + 2 = b
-5 = b

equation is : y = 2x - 5

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