Question

Determine if (2,5) is a solution of -2x+4y=16

Answer 1

$(2,\ 5)\to x=2,\ y=5\\\\\text{substitute the values of x and y to the equation of the line}\ -2x+4y=16:\\\\-2(2)+4(5)=16\\\\-4+20=16\\\\16=16\ \ \ CORRECT$

Answer: (2, 5) is a solution of -2x + 4y = 16.