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Need help I don't get it. Which point is an exact solution to the system y = -6(0.75)^x and y = 4(x - 1)?

(0, -6)
(-1, -8)
(-2, -12)
(-4.5, -22)

Respuesta :

Answer (-1 , -8)

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Check Equation -6(0.75)ˣ
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when x = -1
y = -6(0.75)⁻¹
y = -6(4/3)
y = -8

When x = -1, y = -8, therefore this equation passes through (-1, -8)

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Check Equation y = 4(x - 1)
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When x = -1 
y = 4( - 1 -1)
y = 4(-2)
y = -8

When x = -1, y = -8, therefore this equation passes through (-1, -8)

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Answer (B): (- 1, -8)
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