Practice problem
Which of the following equations shifts the graph y=xy=\sqrt{x}y=x left by 111 unit?
y=x−1y=\sqrt{x-1}y=x−1
y=x+1y=\sqrt{x+1}y=x+1
y=x+1y=\sqrt{x}+1y=x+1
y=x−1y=\sqrt{x}-1y=x−1
Type a concept, like “slope” or “photosynthesis”.