Question

Z Points

Use the substitution method to solve the system of equations.
y = -4x
8x - y = 6
O
O A. (1/2, -4)
O B. (1,-4)
O C. (2,-8)
O D. (1/2, - 2)​

Answer 1

the introduction of the variable z means that the graphed functions now represent planes, rather than lines. the substitution method involves solving for one of the variables in one of the equations, and plugging that into the rest of the equations to reduce the system.

Answer 2

Answer: (1/2,-2)

Step-by-step explanation: