The graph below shows a system of equations: draw a line labeled y equals minus x plus 5 by joining the ordered pairs 0, 5 and 5, 0. draw a line labeled y equals x minus 1 by joining the ordered pairs negative 1, negative 2 and 5, 4 the x-coordinate of the solution to the system of equations is answer for blank 1:

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters