Posts Tagged ‘model’

Ex: Exponential Regression Application on the TI84 (Decreasing Polio Case)

This video explains how to perform exponential regression to model the number of world polio cases.  Several questions are answers graphically using the TI84.

Ex: Exponential Function Applications – Decreasing Water Level (Change of Base Used)

This video explains how to write an exponential function to model a decreasing water level of a lake.  An exponential equation is solved using the change of base formula.

Ex: Exponential Function Applications – Increasing Investment Value (Change of Base Used)

This video explains how to write an exponential function to model a increasing investment account balance.  An exponential equation is solved using the change of base formula.

Ex: Find a Linear and Exponental Model for Population Growth

This video explains how to determine a linear function and an exponential function to model population growth.

Ex: Find the Velocity and Position Vector Functions Given the Acceleration Vector Function

This video explains how to determine a position and velocity  vector valued function given the acceleration vector valued function.

Ex: Find the Velocity and Acceleration Vector Given the Position Vector Valued Function

This video explains how to determine a velocity and acceleration vector at a given value of t given the position vector valued function.  The speed is also found.

Ex: Trigonometric Model -Displacement of a Mass on a Spring

This video explains how to find the amplitude, period, and frequency of a trigonometric function that models the displacement of a mass on a spring. (undamped motion)

Ex: Find a Product of Two Mixed Numbers Using Area

This video explains how to determine the product of two mixed numbers using the area of a rectangle.  The partial products are also shown.

Ex: Find a Product of a Whole Number and Mixed Number Using Area

This video explains how to determine the product of a whole number and a mixed number using the area of a rectangle.  The partial products are also shown.

Ex 2: Write Fraction as a Decimal and Percent using Decimal Grid Model

This video explains how to shade a decimal grid given a fraction.   Then it explains how to write the decimal and percent for the fraction.

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