/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 8 Identify the underlying basic fu... [FREE SOLUTION] | 91Ó°ÊÓ

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Identify the underlying basic function, and use transformations of the basic function to sketch the graph of the given function. $$G(s)=(s-3)^{2}$$

Short Answer

Expert verified
The basic function is \(s^{2}\) and the transformation is a horizontal shift three units to the right. Thus the graph will be a parabola, opening upwards, with the vertex at (3,0).

Step by step solution

01

Identify Basic Function

Firstly, notice that the base function here is \(y = s^{2}\), which is a simple quadratic function. Its graph is a parabola opening upwards.
02

Analyze Transformations

The given function \(G(s) = (s-3)^{2}\) is a transformation of the basic function \(y = s^2\). The transformation takes place by shifting the graph of the basic function three units to the right.
03

Sketching The Graph

To sketch the graph of the function \(G(s) = (s-3)^{2}\), start with the graph of \(s^2\), which is a parabola that opens upwards with its vertex at the origin. Now shift this graph three units to the right. The vertex of the new graph will now be at (3,0). Sketch the new graph maintaining the same shape as the base function.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Quadratic Function
At the heart of many algebraic studies and real-world models is the quadratic function. Such a function is generally expressed in the form of \( y = ax^2 + bx + c \), where \( a \), \( b \), and \( c \) are constants, and \( a \) is not zero. The graph of a quadratic function is a parabola, a symmetrical curve with a highest or lowest point called the vertex. If \( a > 0 \), the parabola opens upwards; conversely, if \( a < 0 \), it opens downwards. This curvature means that quadratic functions can represent motion under gravity, optimization problems, and describe the shape of satellite dishes and suspension bridge cables.

Understanding the basic quadratic function \( y = x^2 \), where the vertex is at the origin \( (0, 0) \), provides a cornerstone for learning about graph transformations. This standard form of a quadratic function makes it simple to visualize and serve as a basis for comparing other transformed quadratic graphs.
Parabola Graph
A parabola graph is the visual representation of a quadratic function on a coordinate plane. Key features of this graph include the vertex, the axis of symmetry, the direction the parabola opens (upwards or downwards), and the intercepts. In its simplest form \( y = x^2 \), the vertex is at the origin, embodying the most symmetrical case with the y-axis as its axis of symmetry.

The parabola is mirroring around this axis, showing the inherent symmetry of quadratic functions. Understanding a basic parabola graph helps students grasp more involved quadratic equations, as it's always possible to refer back to this basic shape when considering the impact of various transformations.
Function Transformations
Graph Transformation is essentially an operation that moves or changes a graph's shape without losing its defining characteristics. The transformations include translations (shifts left, right, up, down), reflections (across the x-axis or y-axis), stretchings, and shrinkings (which change the graph's width or height but not its overall shape).

For the quadratic function \(G(s)=(s-3)^{2}\), the subtraction inside the brackets indicates a translation to the right by 3 units. It's crucial to track these changes from the basic function to accurately predict and understand the graph's new position and shape. Recognizing that the basic form of the parabola is being shifted horizontally or vertically allows students to imagine where the vertex will end up and therefore how the entire graph will look.
Sketching Graphs
Sketching graphs, especially those of quadratic functions, is a foundational skill in mathematics that enhances understanding and problem-solving. The process involves recognizing the basic shape (in this case, the parabola) and systematically applying transformations. Always begin with the parent graph, and then, by considering transformations such as shifts, reflections, and stretches, extrapolate to the specific function's graph.

Using clear, precise movements based on the recognized transformations ensures that the essence of the graph is captured. For example, when sketching \(G(s)=(s-3)^{2}\), knowledge that the base function's graph is shifted three units to the right immediately informs where the vertex of the parabola will be positioned. These skills facilitate not only the ability to sketch the graph but also to interpret and understand the implications of the mathematical relationships depicted.

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Most popular questions from this chapter

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A rectangular garden plot is to be enclosed with a fence on three of its sides and an existing wall on the fourth side. There is 45 feet of fencing material available. (a) Write an equation relating the amount of available fencing material to the lengths of the three sides that are to be fenced. (b) Use the equation in part (a) to write an expression for the width of the enclosed region in terms of its length. (c) For each value of the length given in the following table of possible dimensions for the garden plot, fill in the value of the corresponding width. Use your expression from part (b) and compute the resulting area. What do you observe about the area of the enclosed region as the dimensions of the garden plot are varied? $$\begin{array}{ccc}\hline \begin{array}{c}\text { Length } \\\\\text { (feet) }\end{array} & \begin{array}{c}\text { Width } \\\\\text { (feet) }\end{array} & \begin{array}{c}\text { Total Amount of } \\\\\text { Fencing Material (feet) }\end{array} & \begin{array}{c}\text { Area } \\\\\text { (square feet) }\end{array} \\\\\hline 5 & & 45 \\\10 & & 45 \\\15 & & 45 \\\20 & & 45 \\\30 & & 45 \\\k & & 45 \\\& &\end{array}$$ (d) Write an expression for the area of the garden plot in terms of its length. (e) Find the dimensions that will yield a garden plot with an area of 145 square feet.

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