Explain in words the effects of the transformation given by the formula $$q(z + a)$$ on the graph of $q(z)$. Assume that $a$ is a positive constant. Enter the parameter or number which identifies the amount of the shift, and then select the direction of the shift in the pulldown menu.

The graph of $\ q(z + a) \ $ is units ? to the left of to the right of above below the graph of $q(z)$.