Answer:
   6) y = -7x +11
   8) y = -1/3x -1
   10) y = 5/4x -2
Step-by-step explanation:
It is convenient to start with a point-slope form of the equation.
   y = m(x -h) +k . . . . . line with slope m through point (h, k)
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6) m = -7, (h, k) = (2, -3)
   y = -7(x -2) -3 = -7x +14 -3
   y = -7x +11
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8) m = -1/3, (h, k) = (-3, 0)
   y = (-1/3)(x -(-3)) +0
   y = -1/3x -1
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10) m = 5/4, (h, k) = (4, 3)
   y = 5/4(x -4) +3 = 5/4x -5 +3
   y = 5/4x -2