2 is the only right answer. If it has right/left symmetry, then f(-x) = f(x), meaning it's even.
extra info: 3 and 4 are the same thing
5 works for odd functions (like sin(x))
Answer:
10:40
Step-by-step explanation:
1+4=5
5=50
1=?
1×50÷5=10
5=50
4=?
4×50÷5=40
Answer =10:40
Answer:
The linear function is 
Step-by-step explanation:
A linear function has the following format:

In which m is the slope and b is the y-intercept(the value of y when x = 0).
In the table, we have that when x = 0, y = 2
This means that
. So

Finding the slope:
We take two points, and the slope is given by the change in y divided by the change in x.
Points (0,2) and (1,-1)
Change in y: -1 - 2 = -3
Change in x: 1 - 0 = 1
Slope: 
So
