# Tag: functions

## No, You Don’t Need Quadratic Formula

On the MANSW Facebook page, a fellow teacher from another school threw this question to the brain’s trust. All the answers provided to the problem by others used the Quadratic Formula, but the Algebra from those solutions was not exactly clean. Personally, I don’t think getting the answer in...
## Things to Reconsider: The Integral of $$\frac{1}{x}$$
Absolute Absolutes? Consider the following integral: $\int \frac{1}{x}\,dx = \log_e|x| + C$ When learning this integral, teachers often stress the need to include the absolute value signs. The reasoning behind this is often to do with the fact that the logarithm of a negative number is undefined. However, is...