Answer:

where x₁ and x₂ are values in the interval [x,y] respectively
Step-by-step explanation:
Well, first to determine the average rate of change of a function, you should have the interval of the values of x for the function.
So lets assume you have a function;

And the interval as [1,3]
Then the average rate of change for the function f(x) will be;

where x₁ and x₂ are the interval coordinates x,y respectively. In this case x₁=1 and x₂=3
To find the average rate of change in this example will be;

<SUT is a right angle.
I believe <SUW is equal to 152 degrees.
(a+b+c)/2. this is your answer. if it had the numbers i would solve it fully, but it only has variables.
Step-by-step explanation:
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Is this simultaneous equations?
if yes then the first step is
make one of the unknown as the subject