Question

For the parent function y= sqrt x , what effect does a value of b = -2 have on the graph?

A. Horizontal compression by a factor of 1/2 and a reflection across the y -axis

B. Horizontal compression by a factor of 1/2 and a reflection across the x -axis

C. Horizontal compression by a factor of -1/2 and a reflection across the y -axis

D. Horizontal compression by a factor of -1/2 and a reflection across the x -axis