the first one you plug in 3 for y and -1 for x:
3=2(-1)+? plug in x&y coordinates
3= -2 +? multiply -1×2
5 = ? add 2 to both sides
the second one you do the same:
3=?(-1)-1 plug in x&y coordinates
4=?(-1) add 1 to both sides
-4=? divide by -1
Solve each equation separately:
(-1, 3) Has to be a point that fits both equations
y = 2x + ____
Plug in Values:
3 = 2(-1) + ____
3 = -2 + ____
___ = 5
First Blank: 5
y = ___x - 1
3 = ___(-1) - 1
4 = ___(-1)
___ = -4
Second Blank: -4
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