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Verified answer
1.m=y2-y2/x2-x2
2=b-5/3-2
2=b-5/1
2=b-5
2+5=b
7=b
b=7
2.
y-y1/y2-y1=x-x1/x2-x1
y-(-2)/5-(-2)=x-3/2-3
y+2/7=x-3/-1
-1(y+2)=7(x-3)
-y-2=7x-21
-y=7x-19
y=-7x+19