Answer:
the answer is negative 8. just plug f in
x=3, you can find this by using finding common bases for equation b because 243=3^5. Because of that you can get rid of three on both sides to get the equation 2x-1=5 and then just solve for x to get x=3. For the first equation 5^3=625 so that also proves x=3.
Sorry if my explanation is a little disorganized if you need more help feel free to ask
Answer:
A
Step-by-step explanation:
Answer:
linear
Step-by-step explanation:
The x-values are evenly spaced (1 apart), so it is helpful to look at the differences of the f(x) values.
Successive f(x) values all differ by the constant 0.5, a characteristic of a linear function.
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<em>Comment on differences</em>
The differences of successive y-values are called "first differences". The differences of those are called "second differences". And the differences of those are "third differences." The "degree" of the differences that are constant is the degree of the function describing the sequence.
That is, a sequence (like this one) with constant first differences can be described by a first-degree polynomial, a linear function. If third differences are constant, the sequence is described by a third-degree polynomial, a cubic function.
A square root function will have first differences that decrease by a decreasing amount. Successive differences of differences will continue to decrease, never becoming constant.
An exponential function will have first differences with a common ratio.
