Question

(a) Sketch, by hand, the graph of the function $f(x)=e^x$, paying particular attention to how the graph crosses the $y$-axis. What is the slope of the tangent line at that point? (b) What types of functions are $f(x)=e^x$ and $g(x)=x^e$ ? Compare the differentiation formulas for $f$ and $g$. (c) Which of the two functions in part (b) grows more rapidly when $x$ is large?

   (a) Sketch, by hand, the graph of the function $f(x)=e^x$, paying particular attention to how the graph crosses the $y$-axis. What is the slope of the tangent line at that point?
(b) What types of functions are $f(x)=e^x$ and $g(x)=x^e$ ? Compare the differentiation formulas for $f$ and $g$.
(c) Which of the two functions in part (b) grows more rapidly when $x$ is large?
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Single Variable Calculus: Early Transcendentals
Single Variable Calculus: Early Transcendentals
James Stewart,… 9th Edition
Chapter 3, Problem 2 ↓
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(a) Sketch, by hand, the graph of the function $f(x)=e^x$, paying particular attention to how the graph crosses the $y$-axis. What is the slope of the tangent line at that point? (b) What types of functions are $f(x)=e^x$ and $g(x)=x^e$ ? Compare the differentiation formulas for $f$ and $g$. (c) Which of the two functions in part (b) grows more rapidly when $x$ is large?
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Transcript

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00:01 In this problem, we are given the function f of x equals e raise to the x.
00:06 It says to pay particular, so it wants us to graph it and pay attention to what happens as it crosses the y axis.
00:14 So we know that e to the x is a logarithmic function, but so i have plugged in our numbers for x and solve for f of x in this table.
00:27 And so now i'm going to just kind of draw and plot a little bit.
00:36 So we know at this point that is 0 .1.
00:48 We also know that after it stays very close to zero for your f of x values.
00:59 On this left side over here, it stays very close to 0.
01:02 When it crosses the y axis, it goes to 1.
01:05 And then it increases exponentially as it goes up this graph.
01:11 The next thing this question wants us to do is define the derivative of this function.
01:20 And actually, by the rule, the derivative of e to the x is just e to the x...
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