How to do it step by step easy
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Step 1: evaluate f(x+h) and f(x)
We have
And, of course,
Step 2: evaluate f(x+h)-f(x)
Step 3: evaluate (f(x+h)-f(x))/h
Step 4: evaluate the limit of step 3 as h->0
So, we have
Step-by-step explanation:
This is the standard linear equation:
represents slope and
represents the y-intercept. In a finished equation,
and
are left as variables.
and
represent any given point in the function. In this case, one of the given coordinates is
, and we can use this by using
as
and
as
. After plugging in known variable, the equation becomes this:
This simplifies to:
Then to:
.
After plugging in slope and y-intercept, the finished equation is: