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Kim Modelling Functions

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• 1. Modelling
Kim Dart
• 2. Modelling
When you’re given an equation that is missing a certain variable or constant and certain points (x,y) on the graph, and are asked to find that variable by inserting the given points into the equation.
• 3. Modellingona Calculator
• 4. Modelling Involving Exponential Functions
The rule for the function of a graph is of the form y = aex + b. The graph passes through the points (0,6) and (3,22). Find the values of a and b.– Do question on the board.
(Solution page 177 of text book)
• 5. Questions
Complete;
Exercise 5.E. Q.1,2
• 6. Modelling Involving Logarithmic Functions
The rule for the function of a graph is of the form y = aloge(x+b). The graph passes through the points (5,0) and (8,1). Find the values of a and b. – Do question on the board.
(Solution page 177 of text book)
• 7. Questions
Complete;
Exercise 5.E; Q5,8
• 8. Modelling Involving Circular Functions
A function with rule y=Asin(nt)+b had range [2,8] and period 2π/3. Find the values of A, n and b. Do question on the board.
• 9. Questions
Complete;
Exercise 6.J; Q.5,7.