What linear function can be represented by the set of ordered pairs?
{(−4, 15), (0, 5), (4, −5), (8, −15)}

Respuesta :

Solving for the slope using points ( (−4, 15), (0, 5)  
M = ( 15 – 5) / ( -4 – 0) = -5 / 2  
Solving for b  
Y = mx + b
  5 = 0(-5/2) + b
B = 5  
So the linear function is
Y = (-5/2) x + 5

I've completed the test:

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