Y = 5x + 1 Table down below Help!
1 answer:
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Answer:
Increasing if f' >0 and decreasing if f'<0
Step-by-step explanation:
Difference quotient got by getting
will be greater than 0 if function is increasing otherwise negative
Here h is a small positive value.
In other words, we find that whenever first derivative of a function f(x) is positive the function is increasing.
Here given that for x1, x2 where x1<x2, we have
if f(x1) <f(x2) then the function is decreasing.
Or if x1<x2 and if f(x1) >f(x2) for all x1, and x2 in I the open interval we say f(x) is decreasing in I.
First we have to find 
from the equation 
where a, b and c are consecutive coefficients of the equation. In this case: 
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Later we will need to use
sofor us 
. It can be then simplified to 
.
Then we use quadratic formula
to see what are the options for x.
The answer for your question:
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or 
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Later we will need to use
Then we use quadratic formula
The answer for your question:
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