lprileyrock
contestada

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

Respuesta :

texaschic101
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