Answer:
12=-3(-7.5)-10.5
Step-by-step explanation:
first find the slope
m=y2-y1/x2-x1
0-12=(-12)
-3.5-(-7.5)=4
-12/4=(-3)
now write the equation
y=mx+b
12=-3(-7.5)+b
now solve
-3*-7.5=22.5
22.5-22.5=0
12-22.5=(-10.5)
b=-10.5
hope this helps :3
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