be rewritten to determine the…

Mathematics Questions

How can the function ( y = 3 – 8x – 4 ) be rewritten to determine the transformation of the parent function, and what are the transformations of the graph compared to the parent function?

Short Answer

The first step involves rewriting the function by factoring out -8, leading to a transformation that yields -2 before the radical. Next, the graph reflects over both the x-axis and y-axis due to the negative factors, and finally, it undergoes a vertical stretch by a factor of 2 and a translation of ¬Ω unit to the left.

Step-by-Step Solution

Step 1: Rewrite the Function

To understand the transformation of the parent function, start by rewriting the given function. Focus on factoring out the number that influences the radical’s output. In this case, factor -8 from the radicand. By doing this, take the cube root to reposition the constant in front of the radical, ultimately yielding a result of -2 before the radical symbol.

Step 2: Analyze Reflections

Next, examine how the function’s graph transforms in relation to the parent function. The following transformations occur:

  • The graph reflects over the x-axis due to the negative sign.
  • The graph also reflects over the y-axis because of another negative factor within the equation.

These reflections result in a graph that is flipped both vertically and horizontally compared to the original.

Step 3: Assess Stretch and Translation

Finally, identify the vertical stretch and translation of the graph. The graph is vertically stretched by a factor of 2, meaning its height is increased. Additionally, it is translated ¬Ω unit to the left, affecting the position of the entire graph along the x-axis. These changes give the graph its final transformation from the parent function.

Related Concepts

Rewriting the function

Defining the process of rearranging a mathematical function to emphasize certain components, such as factoring out constants

Reflections

The transformations of a graph that involve flipping it over one or both axes, altering its orientation in relation to the original configuration

Stretch and translation

The processes of modifying a graph’s size and position, specifically involving vertical scaling (stretching) and horizontal shifts (translations) along the coordinate plane.

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