Answer:
"It is translated 1 unit left and stretched vertically by a factor of 3"
Step-by-step explanation:
The parent function here is y = x^2
Let's give out some general rules of transformation:
If y = f(x) is a parent function, then
1. If we have y = a * f(x)
| a | > 1 is a stretch;
0 < | a | <1 is a compression, vertically for both
and
2. If we have y = f(x-c), this means horizontal translation to right c units and y = f(x+c) means horizontal translation c units left
Looking at y = 3(x+1)^2, we can say that "it is vertical stretch by a factor 3 and horizontal translation 1 units left"
