Answer:
(a) The net change of the function is 12.
(b) The average rate of change of the function 4.
Step-by-step explanation:
The average rate of change of function 
 over the interval 
 is given by this expression:
average rate of change =  
It is a measure of how much the function changed per unit, on average, over that interval.
Given:

(a) To find the net change of the function, first we calculate the values of 
 and 

The net change is simply the difference 

(b) The average rate of change takes the net change and divides it by the change in the 
 value. 

 
        
                    
             
        
        
        
Using the numbers 1 through 9 only once in the boxes, the largest value of x you can get is <u>7</u>.
<h3>What are mathematical operations?</h3>
Mathematical operations refer to the calculation of values using operands and mathematical operators. 
Mathematical operations are formed like functions to take zero or more input values (operands) to a well-defined output value.
Some of the mathematical operators perform addition, subtraction, multiplication, division, exponentiation, and modulus operations.
<h3>Data and Calculations:</h3>
Mx + y = z
Let m = 1
x = 7
y = 2
1 x 7 + 2 = 9
7 + 2 = 9
9 = 9
Thus, using the numbers 1 through 9 only once in the boxes, the largest value of x you can get is <u>7</u>.
Learn more about mathematical operations at brainly.com/question/20628271
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Answer:
15 dollars per hour
Step-by-step explanation:
She is constantly charging 15 per hour.