The equation of a line with slope m and y-intercept b is y = mx + b.

The equation of a line with a slope of -8 and y-intercept of 3 is y = -8x + 3

A vertical line has slope infinity. The equation of a vertical line passing through (-2, 6) is x = -2

A horizontal line has slope 0. The equation of a horizontal line passing through (-2, 6) is y = 6.

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