# Transformations of functions: Horizontal translations #### Everything You Need in One Place

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##### Examples
###### Lessons
1. Sketch the following functions on the same set of coordinate axes:
$y = {\left( x \right)^2}$      VS.      $y = {\left( {x - 6} \right)^2}$      VS.      $y = {\left( {x + 5} \right)^2}$
2. Compared to the graph of $y = {x^2}$:
• the graph of $y = {\left( {x - 6} \right)^2}$ is translated "horizontally" ________ units to the ______________.
• the graph of $y = {\left( {x + 5} \right)^2}$ is translated "horizontally" ________ units to the ______________.
1. Horizontal Translations
Given the graph of $y = f\left( x \right)$ as shown, sketch:
1. $y = f\left( {x-8} \right)$
2. $y = f\left( {x+3} \right)$
3. In conclusion:
$\left( x \right) \to \left( {x-8} \right)$: shift __________ to the __________. All x coordinates $\Rightarrow$ ____________________
$\left( x \right) \to \left( {x+3} \right)$: shift __________ to the __________. All x coordinates $\Rightarrow$ ____________________ ###### Topic Notes
Horizontal translations refer to movements of a graph of a function horizontally along the x-axis by changing the x values. So, if y = f(x), then y = (x –h) results in a horizontal shift. If h > 0, then the graph shifts h units to the right; while If h < 0, then the graph shifts h units to the left.
Compared to $y=f(x)$:
$y=f(x-8)$: shift 8 units to the right
$y=f(x+3)$: shift 3 units to the left