Functions are accurate through having one x intercepts which is how you can find which are functions or not.
Answer- B,D,E
The correct answers for x would be

.
In order to find this, we must first get the equation to equal 0. In order to do that, subtract 1 from each side to get the following.
11

- 4x - 1 = 0
Knowing this we can now use the quadratic equation using a = 11, b = -4 and c = -1. The quadratic equation is below.

Now we can plug the values into the equation to solve.

Then simplify using the order of operations.

.
You answer is C because 7-(-2) is 9 and then u just had an X at the end .
Hope this helps:)
Answer:
Could you specify what other answers there are in order for me to answer this?
Step-by-step explanation:
Answer:
p = 42
area = 72
Step-by-step explanation:
p = 3 + 9 + 12 + 5 + 9 + 4 = 42
area:
3 × 4 = 12
5 × 12 = 60
12 + 60 = 72
<em>good luck, i hope this helps :)</em>