Chapter 11.4, Problem 1E

(a)

To determine

To fill: Suppose we want to graph an equation on $x$ and $y$.

If we replace $x$ by $x-3$, the graph of the equation is shifted to the ____ by $3$ units. If we replace $x$ by $x+3$, the graph is shifted to the ____ by $3$ units.

(b)

To determine

To fill: Suppose we want to graph an equation on $x$ and $y$.

If we replace $y$ by $y-1$, the graph of the equation is shifted to the ____ by $1$ units. If we replace $y$ by $y+1$, the graph is shifted to the ____ by $1$ units.