Business Calculus
A function f(x)f\left(x\right) has the following properties:
f′(x)>0f^{\prime}\left(x\right)>0 and f′f^{\prime}′(x)>0^{\prime}\left(x\right)>0, for x>4x>4
Which of the following is a possible graph of f(x)f\left(x\right)?
Graph the function f(x)=6−6x23+x83f\left(x\right)=6-6x^{\frac23}+x^{\frac83}. The first and second derivative are given.
f′(x)=−4x13+83x53f^{\prime}\left(x\right)=-\frac{4}{x^{\frac13}}+\frac83x^{\frac53}
f′′(x)=43x43+409x23f^{\prime\prime}\left(x\right)=\frac{4}{3x^{\frac43}}+\frac{40}{9}x^{\frac23}
Graph the given classical curve using analytical methods.
y2=x3−2x+3y^2=x^3-2x+3 ; dydx=3x2−22y\frac{dy}{dx}=\frac{3x^2-2}{2y}
In a computer simulation, a drone is programmed to always fly directly towards a moving target. The target moves north from a specific point at a constant speed of 11 unit per time step. The drone starts its pursuit 33 units east of the starting point of the target, moving at a speed of s>1s > 1 unit per time step. The path followed by the drone is given by the equation y=s2[xs+1ss+1−xs−1ss−1]+ss2−1y=\frac{s}{2}\left\lbrack\frac{x^{\frac{s+1}{s}}}{s+1}-\frac{x^{\frac{s-1}{s}}}{s-1}\right\rbrack+\frac{s}{s^2-1}. For a simulation where s=3s = 3, what is the yy-coordinate of the drone's position when x=8x = 8 units? Also, plot the graph for s=3s = 3.
The first derivative of a continuous function g(x)g\left(x\right) is g′(x)=2x(x−2)2g^{\prime}\left(x\right)=2x\left(x-2\right)^2. Find the second derivative of g(x)g\left(x\right) and sketch the general shape of its graph.