4. After a survey, it is found that the left side of the bridge must be extended 10m. What could you change about the function f (x) to extend one side 10m? 5. If you wanted to lower the center of the suspension without changing any other parts, what would you change? Give an example of a function that lowers the center suspension by 10m. 6. After consulting with your colleagues, you believe that a suspension bridge is not the right choice. Design an arch bridge that will span Khor a1 Maqta. Be sure to give the equation and sketch a graph