Y=(f)x = (1/2)^x
Find f(x) when x = 3
Round your answer to the nearest thousandth

Need this asap if anyone can i would be very grateful. if you could show workings that would really

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

Will mark brainliest! ( explain the answer too, it can be one sentence)