Answer:
Explanation:
3f(x) stretches the graph of the function by a factor of 3 since it is being multiplied to f(x) and 3 is greater than one.
f(x+3) shifts the graph of the function 3 units to the left since 3 equals h in the equation: f(x-h), so you switch the sign and it becomes negative thus moving left.
f(3x) compresses the graph by a factor of 1/3 since it is inside the parenthesis.
f(x) + 3 shifts the graph of the function up by 3 units since it is being added to f(x).