All of them are true.
Refer to calculation for understanding.
Answer:
b) 1/4
The slope of the line is 1/4
Answer:
y=2x+7
Step-by-step explanation:
Use point slope form --> 
y-1=2(x+3)
y-1=2x+6
y=2x+7
The easiest way is to plug x=-4, y=-1 in the equation to see which one works.
8(-4)-9(-1)=-23
B is correct.
Answer:
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