ap-calculus-ab

1998 free-response_formB

5 maths questions

Let $f$ be the function defined by $f ( x ) = - 2 + \ln \left( x ^ { 2 } \right)$. (a) For what real numbers $x$ is $f$ defined? (b) Find the zeros of $f$. (c) Write an equation for the line tangent to the graph of $f$ at $x = 1$.
A particle moves along the $X$-axis so that at time $t$ its position is given by $x ( t ) = t ^ { 3 } - 6 t ^ { 2 } + 9 t + 11$. (a) What is the velocity of the particle at $t = 0$ ? (b) During what time intervals is the particle moving to the left? (c) What is the total distance traveled by the particle from $t = 0$ to $t = 2$ ?
Q3 Stationary points and optimisation Solve trigonometric equation for solutions in an interval View
Let $f$ be the function defined for $\frac { \pi } { 6 } \leqq x \leq \frac { 5 \pi } { 6 }$ by $f ( x ) = x + \sin ^ { 2 } x$. (a) Find all values of $x$ for which $f ^ { \prime } ( x ) = 1$. (b) Find the $x$-coordinates of all minimum points of $f$. Justify your answer. (c) Find the $x$-coordinates of all inflection points of $f$. Justify your answer.
Q4 Volumes of Revolution Multi-Part Area-and-Volume Free Response View
The figure above shows the graph of the equation $x ^ { \frac { 1 } { 2 } } + y ^ { \frac { 1 } { 2 } } = 2$. Let R be the shaded region between the graph of $x ^ { \frac { 1 } { 2 } } + y ^ { \frac { 1 } { 2 } } = 2$ and the $X$-axis from $x = 0$ to $x = 1$. (a) Find the area of R by setting up and integrating a definite integral. (b) Set up, but do not integrate, an integral expression in terms of a single variable for the volume of the solid formed by revolving the region R about the $X$-axis. (c) Set up, but do not integrate, an integral expression in terms of a single variable for the volume of the solid formed by revolving the region R about the line $x = 1$.
At time $t = 0$, a jogger is running at a velocity of 300 meters per minute. The jogger is slowing down with a negative acceleration that is directly proportional to time $t$. This brings the jogger to a stop in 10 minutes. (a) Write an expression for the velocity of the jogger at time $t$. V (b) What is the total distance traveled by the jogger in that 10 -minute interval?