MODELLING

Kim Dart

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.

Modellingon a Calculator

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)

Questions

Complete; Exercise 5.E. Q.1,2

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)

Questions

Complete; Exercise 5.E; Q5,8

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.

Questions

Complete; Exercise 6.J; Q.5,7.