30 points. with answer. dont know how this works

Which of the following could be the graph of the equation y = -2x + 5

Which of the following is true for the relation f(x)=2x^2+1

Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if it’s width were increased to 12 feet?