Answer :
equation of line h is y=-2x-1
Slope is -2 (because it’s parallel)
so you have y=-2x+a
now you have to plug in the points it needs to pass through -9=-2(4)+a
do -2(4)
isolate a so then you would add the -8 to the other side
do the math of -9-(-8)
that’s how you get y=-2x-1
Slope is -2 (because it’s parallel)
so you have y=-2x+a
now you have to plug in the points it needs to pass through -9=-2(4)+a
do -2(4)
isolate a so then you would add the -8 to the other side
do the math of -9-(-8)
that’s how you get y=-2x-1