Answer: The correct answer is Choice C.
The parent function for a linear equation is y = x. This produces a straight line going up at a 45 degree angle. To flip it over the x-axis, you would have to multiply it by a negative number. y = -1x
Now, to make the compression, you have to reduce the slope. Instead of 1, we want a number less than one.
Choice C is the only choice with a value less than 1 and negative.