Write equations in the form
y = m x + b
then m is the slope
then put the coordinates in to get b
in this case
9 y = 9 x + 144
y = 1 x + 16
slope is 1 so parallel is
y = x + b
2 = 6 + b
b = -4
so for parallel y = x - 4
9 y = 9 x - 36
9x - 9y = 36
So I get none of the above for the parallel line. Typo?
sorry I can't seem to type this morning
b) para -9x+9y=-36
ok for parallel
y = -x +b
2 = -6+b
b = 8
y = -1x + 8
9y = -9x + 72
-9x - 9y = -72 yes
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