Answer:
B. Not a function
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given: a graph
To find: the average rate of change of the amount of the element over the 10-minute experiment
Solution:
A rate of change of one quantity with respect to another quantity is known as rate of change. If y is the dependent variable and x is the independent variable then average rate of change = change in y /change in x.
From the graph,
change in x (time) =
minutes
change in y ( amount of the element) =
g
So, average rate of change = 
Answer:
11<em>i</em>
Step-by-step explanation:
first you have to get a postive root.

then you solve the square roots from there, keeping in mind the imaginary number answer to the square root of -1, <em>i</em>.

One taco would cost about $1.20.