What is the value of the expression 2x^2 + 3xy - 4y^2 when x = 2 and y = -4?

Solve the system by the elimination method. x + y - 6 = 0 x - y - 8 = 0 when you eliminate y , what is the resulting equation? 2x = -14 2x = 14 -2x = 14

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20