All Tasks
Calculating with the Derivative of e
Calculate the derivative for $f(x)=3e^x$ and $g(x)=e^{x^2}$ and give the answer for $f'(2)$ and $g'(2)$. Round to three decimal places.
# Derivation of functions
Training
11
Velocity of a Stone
The velocity of a stone sinking in a lake is given by \begin{equation}v(t)=2.5\cdot(1-e^{-0.1\cdot t})\end{equation} with $t$ in seconds and $v(t)$ in $\frac{m}{s}$.
How fast is the stone sinking at the beginning? How fast after ten seconds?
Round to three decimal places, if needed.
# Exponential function
Modeling
11
Frequencies
In the table above you can see the basketball results of the four children- namely Lena, Angeló, Marie and Juan. Which of them has the best scoring rate and it’s therefore the best player of the game? Tick the right name!
# Equations & Inequations
Training
6
Intersection of two linear functions
Determinate the intersection point of the two linear functions:
$f(x)=-1,5x-1\\ g(x)=3x+8$.
# Linear functions
Training
8
An equation with functions
Let $f(x)=xe^x$.
Which $x\in\mathbb{R}$ solves the equation
$f'(x)-f(x)=0$?
# Exponential function
Reasoning
10
Study of horizontal asymptote
Let the function
$f(x)=\frac{e^x+x}{e^x}$,
we can say that
# Exponential function
Training
11
