Answer:
Graph 1:
y-intercept = 7
Slope = -1/2 <--- (It's a fraction) (-1 over 2)
Equation: y = -1/2x + 7
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Graph 2:
y-intercept = 4
Slope = 5/6 <--- (It's a fraction) (5 over 6)
Equation: y = 5/6x + 4
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Graph 3:
y-intercept = 9
Slope = -5/7 <--- (It's a fraction) (-5 over 7)
Equation: y = -5/7x + 9
Hope this Helps :)