Which of these is a correct step in constructing an angle bisector? Use a straightedge to measure the bisected angles. Use a compass to join the point where the arcs cross the vertex. Use a compass to draw two equal arcs from the intersection points of a previous arc and the legs. Use a straightedge to draw arcs that intersect at a point.

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.