Which equation represents a line that passes through (–9, –3) and has a slope of –6?

Use point-slope form, y − y₁ = m(x − x₁). Substituting the slope −6 and the point (−9, −3) gives y − (−3) = −6[x − (−9)], or y + 3 = −6(x + 9). This is choice D.

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