中等math-u03-d03
Compared with the graph of y = f(x), the graph of y = f(x) + 3 is:
A. Translated 3 units upwards✓ 答案
B. Translated 3 units to the right
C. Reflected in the x-axis
D. Reflected in the y-axis
解說
Adding a constant outside the function moves every point vertically by that amount. Adding inside, f(x) + 3x, would instead change the shape.