Answer:
8) A. (1,-4) 9) D. (4,0)
Step-by-step explanation:
You can substitute the x and y coordinates in each inequality and use process of elimination to figure out whether the ordered pair is the solution.
You can substitute the value of y(5/6 x + 1) from the first equation for y in the second and get

which becomes

and you get
Answer:
15
Step-by-step explanation:
Plug the number into the equations
Answer:
B. 21.2
Step-by-step explanation:
Perimeter of ∆ABC = AB + BC + AC
A(-4, 1)
B(-2, 3)
C(3, -4)
✔️Distance between A(-4, 1) and B(-2, 3):




AB = 4 units
✔️Distance between B(-2, 3) and C(3, -4):




BC = 8.6 units (nearest tenth)
✔️Distance between A(-4, 1) and C(3, -4):




AC = 8.6 units (nearest tenth)
Perimeter of ∆ABC = 4 + 8.6 + 8.6 = 21.2 units
The answer should be 6a-18 .