CraigsMaths

Mathematics Teaching for Learning

Archive for September, 2008

Solving equations when the pronumeral is an exponent

Friday, September 26th, 2008

If you have an equation and want to solve for an unknown in the exponent simply take the logarithm of both sides and apply the indices/logarithms laws.

An example follows: (more…)

Sketching exponential functions summary

Saturday, September 20th, 2008

As discussed in graphs of exponential functions the most informative approach is to view the general form

y=ae^{b\left(x-c\right)}+d

as a set of transformations.

These transformations are summarised here in tabular form. (more…)