5x-8y=1...(1)
3x+6y=-21...(2)
(1)*3:
15x-24y=3...(3)
(2)*5:
15x+30y=-105...(2)
(3)-(2):
15x-24y-(15x+30y)=3-(-105)
15x-24y-15x-30y=108
-54y=108
y=-2
Slope is 5
Y intercept is 5
Solve:
5x-y=-5
(Isolate Y by adding y to both sides to get it alone and adding 5 to both sides)
Y=5x+5
We know that slope (m) is w the X so in this case it is 5
And then to find the y intercept we substitute O for X.
Y=5(0)+5
Y=5
Y = kx - 8. The variable k can be any negative value.
The shape is a parallelogram because the length of the sides based on the coordinates
Answer:
B. 16 feet
Step-by-step explanation:
Hope it helped!
