Which relations represent functions?

Which of the following represents the range of the graph of f(x) below

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 the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?