by inserting (1/10)x all previous x values are larger apart, x is your "speed" progressing through the function so by multiplying it with 1/10 you are "slower" and it stretched the function by a factor of 10 along x
also y=10g(stuff)
so all y coordinates are multiplied by a factor of 10 stretching the function along y
so in both the x and y direction the function is stretched by a factor of 10