1.5 Reflection across the xaxis: $y = f(x)$
Reflection across the xaxis: $y = f(x)$
The concept behind the reflections about the xaxis is basically the same as the reflections about the yaxis. The only difference is that, rather than the yaxis, the points are reflected from above the xaxis to below the xaxis, and vice versa.
Lessons

a)
Sketch the following functions:
$y = {\left( {x  4} \right)^3}$ VS. $ y = {\left( {x  4} \right)^3}$ 
b)
Compared to the graph of $y = {\left( {x  4} \right)^3}$:
• the graph of $ y = {\left( {x  4} \right)^3}$ is a reflection in the ___________________.


a)
$y =  f\left( x \right)$

b)
In conclusion:
• $\left( y \right) \to \left( {  y} \right)$: reflection in the ____________________ ? all $y$ coordinates ______________________________.
