Answer:
f(x) - 4 is f(x) is translated 4 units down
4f(x) is f(x) is vertically stretched by a factor of 4
Step-by-step explanation:
k is denoted as vertically movement. In this case, k = -4, so we move down 4 units
a is denoted as vertical stretch or shrink, depending on whether a is less than or greater than 0. In this case, a is greater than and is 4, so it is vertically stretched by a factor of 4.
