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What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left