Which graph best represents the equation x+2y=4

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

If g(x) is an odd function, which function must be an even function?