Respuesta :

2x + 4y = 6
4y = -2x + 6
y = -1/2x + 3/2
slope = -1/2

y = mx + b 
y = -1/2x + b

At point (6, 4)
4 = -1/2(6) + b
4 = -3 + b
b = 7

Equation : y = -1/2x + 7
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