Answer:
-8
Step-by-step explanation:
You are given the following table representing the function f(x):

This means

Hence,
f(5)=-8
If you’re simplifying it’s 100x^2+200x+5
Answer: A
Step-by-step explanation:
If you flip the second triangle straight upwards so that x is on top and z,y are on the bottom, you could visualize the points and angles in the same locations.
Answer:
D
Step-by-step explanation:
Because in D, there no x-value that are repeating in the list.
For example A, the value 8 and -8 are being repeated twice, which makes this relation not a fuction.