The graph of h( x) = -x2 - 10x + 5 can be used to model the height in feet of a
curved support for an archway, where the x-axis represents the ground level and x
represents the distance in feet at the ground level from one side of an arch support
to the other. Find the height of the highest point of the archway.

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.