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It’s AP Calc, any ideas? Due by 4 pm

It’s AP Calc, any ideas? Due by 4 pm-example-1
User Ricky Sahu
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1 Answer

4 votes

Answer:


x=2.28688 which you can round or truncate as you need to.

Explanation:

Firstly, we need to understand what this question is asking us to do. The slope of the line tangent to the graph of
f(x) at x is simply
f'(x) at x.

This means that all we are doing is finding when the derivative is equal to 2.

Here is our setup.


0.1x+e^(0.25x)=2

This is not a problem equation that you will be able to solve by hand as it utilizes a method that is not taught until later. This means that it is acceptable to use a calculator to find the solution.

In this case, we have two options. Graph both
f(x)=0.1x+e^(0.25x) and
y=2 and find their intersection, or graph
f(x)=0.1x+e^(0.25x)-2 and find its zero.

Either way, you get
x=2.28688, which you can round or truncate as you need to.

User Drarkayl
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8.0k points