10 points and to whoever gets it right

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.

Which of the following circles have their centers on the x-axis? check all that apply.