Larger I think, sorry if that’s wrong.
Answer:
f(x)= x^2 - 2, the one in red.
Step-by-step explanation:
To move a quadratic function up/down, you change the value at the very end of the formula.
So instead of f(x)= x^2 + 1, you would do f(x)= x^2 - 2, to move it down 3. This would be the one in red.
Answer:

Step-by-step explanation:
Given
The attached plot
Required
Which degree maps the triangle onto itself
The degrees that can map a point, line, or shape onto itself are:

i.e. multiples of 360
Looking at the given options
is correct because it can be found in the listed multiples
In other words, it will map point
to point 
P = 2(L + W)
L = 1/3W - 3
P = 2(1/3W - 3 + W) or P = 2(4/3W - 3)