Answer:
Step-by-step explanation:
y=mx+b
so inset the first point into the equation
-3 for x and 7 for y.
7=m(-3)+b
y=mx+b
1 for x and -1 for y
-1=m(1)+b
now put them together and solve for m and b.
-1=m+b
7=-3m+b
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-1-b=m
7=-3m+b
inset m into the equation
7=-3(-1-b)+b
7=3+3b+b
4=4b
b=1
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insert b back in for -1=m+b
-1=m+1
m=-2
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Now insert it back into y=mx+b
y=(-2)x+1
so this line contains those points that were given
Hope this helps :)
