中等MATH-FUNC-007
The graph of y = f(x + 2) is obtained from y = f(x) by a translation of
A. 2 units up
B. 2 units to the right
C. 2 units to the left✓ 答案
D. 2 units down
解說
y = f(x + 2) replaces x by x + 2, so each feature occurs 2 units further left. The positive sign inside the brackets does not mean a move to the right.