Learning Resources

Investigation1: The Pressure and Volume Relationship for a Gas & Focus A: Functions of the Form

Question #4

You must recall what you have learned about stretching graphs. Consider, for example the relocation of the point (1, 1) in the graph of to the point 
(1, 2) under a vertical stretch in , or to the point (2, 1) under a horizontal stretch.

• For part (a), note some points that lie on the graph. Choose a convenient one to substitute into the given equation and solve for C. 
• For part (b), describe the effect of each replacement as either a vertical or horizontal stretch of the graph . Note that for functions of the type , both stretches have the same effect on the shape of the graph.