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What is an accumulation function?

A function that represents the accumulated amount of a quantity as its rate of change is integrated over time.

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What is an accumulation function?
A function that represents the accumulated amount of a quantity as its rate of change is integrated over time.
What does the definite integral represent graphically?
The area under the curve of a function between two specified limits.
What is the rate of change function?
A function that describes how a quantity changes with respect to another variable, often time.
What is displacement?
The net change in position of an object.
What does the integral of velocity represent?
Displacement (or net change in position).
What is an initial condition?
The value of a function at a specific point, often at time t=0, used to determine the constant of integration.
Define net change.
The difference between the final and initial values of a quantity.
What are the units of a rate of change function?
Units of the dependent variable per unit of the independent variable (e.g., mosquitoes per day).
What is the relationship between position, velocity, and acceleration?
Velocity is the derivative of position, and acceleration is the derivative of velocity.
What is the purpose of evaluating a definite integral?
To find the net change or accumulation of a quantity over a specific interval.
What is the formula for displacement given a velocity function $v(t)$ from $t=a$ to $t=b$?
$\int_{a}^{b} v(t) dt$
What is the formula for finding the total amount at time $t$ given a rate of change $R(t)$ and initial amount $A(0)$?
$A(t) = A(0) + \int_{0}^{t} R(x) dx$
What is the general form of a definite integral?
$\int_{a}^{b} f(x) dx$
What is the power rule for integration?
$\int x^n dx = \frac{x^{n+1}}{n+1} + C$, where $n \neq -1$
What is the formula for the net change of a function $F(x)$ from $x=a$ to $x=b$?
$F(b) - F(a) = \int_{a}^{b} F'(x) dx$
What is the integral of $\cos(x)$?
$\int \cos(x) dx = \sin(x) + C$
What is the integral of $\sin(x)$?
$\int \sin(x) dx = -\cos(x) + C$
What is the formula to find the number of mosquitoes at t=31?
$1000 + \int_{0}^{31} R(t) dt$
What is the integral of a constant $k$ with respect to $x$?
$\int k dx = kx + C$
What is the formula for integrating a function multiplied by a constant?
$\int kf(x) dx = k \int f(x) dx$
How do you solve an accumulation problem involving velocity to find displacement?
1. Identify the velocity function v(t). 2. Set up the definite integral: $\int_{a}^{b} v(t) dt$. 3. Evaluate the integral to find the displacement.
How do you find the total amount at time $t$ given a rate of change and initial condition?
1. Identify the rate of change function R(t) and the initial condition A(0). 2. Set up the integral: $A(t) = A(0) + \int_{0}^{t} R(x) dx$. 3. Evaluate the integral and add it to the initial condition.
How do you solve an accumulation problem when the rate of change function is given graphically?
1. Identify the relevant interval. 2. Approximate the area under the curve using geometric shapes or numerical methods (e.g., trapezoidal rule). 3. Add the area to any given initial condition.
How do you solve an accumulation problem involving mosquitoes?
1. Identify the rate of change function R(t). 2. Set up the definite integral to find the net change: $\int_{0}^{31} R(t) dt$. 3. Add the result to the initial number of mosquitoes (1000). 4. Round to the nearest whole number.
How do you solve an accumulation problem involving a rate of change with both positive and negative values?
1. Identify the rate of change function. 2. Set up the definite integral over the interval. 3. Evaluate the integral, considering the sign of the function to determine net change.
How do you solve an accumulation problem where you are given a table of values for the rate of change?
1. Use a numerical integration method (Trapezoidal Rule, Riemann Sum) to approximate the definite integral using the table values. 2. Add the result to any given initial condition.
How do you solve an accumulation problem where you need to find the time when the accumulated amount reaches a specific value?
1. Set up the accumulation function with the unknown time as the upper limit of integration. 2. Set the accumulation function equal to the target value. 3. Solve for the unknown time using algebraic methods or a calculator.
How do you solve an accumulation problem that requires finding the maximum or minimum accumulated amount?
1. Find the critical points of the rate of change function by setting its derivative equal to zero. 2. Evaluate the accumulation function at the critical points and endpoints of the interval. 3. Compare the values to determine the maximum or minimum accumulated amount.
How do you solve an accumulation problem where you are given a piecewise function for the rate of change?
1. Break the integral into separate integrals corresponding to each piece of the function. 2. Evaluate each integral over its respective interval. 3. Sum the results to find the total accumulation.
How do you solve an accumulation problem that involves finding the average value of a rate of change over an interval?
1. Set up the definite integral of the rate of change function over the interval. 2. Divide the result by the length of the interval to find the average value.