/*! 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 23 Sketch the graph of each nonline... [FREE SOLUTION] | 91Ó°ÊÓ

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Sketch the graph of each nonlinear inequality. $$x>|y|$$

Short Answer

Expert verified
Shade the region to the right of both lines \(x = y\) and \(x = -y\).

Step by step solution

01

- Understand the inequality

We need to sketch the graph of the inequality \(x > |y|\). This means we need to find all the points \((x, y)\) where the x-coordinate is greater than the absolute value of the y-coordinate.
02

- Graph the boundary

First, graph the boundary of the inequality, which is \(x = |y|\). This represents two lines: \(x = y\) and \(x = -y\). Draw these lines on the coordinate plane.
03

- Determine the inequality region

Since the inequality is \(x > |y|\) (not \(x eq |y|\)), we look for the region where x is greater than \(y\) and also greater than \(-y\).
04

- Shade the appropriate region

Shade the region to the right of both lines \(x = y\) and \(x = -y\). This shaded region represents all the points \((x, y)\) where the x-coordinate is greater than the absolute value of the y-coordinate.

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Key Concepts

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

absolute value
To understand the inequality \(x > |y|\), let's first break down what an absolute value is. The absolute value of a number is its distance from zero on the number line, always a non-negative value. It is represented as \(|y|\). So, if \(y = 3\), then \(|y| = 3\). Similarly, if \(y = -3\), then \(|y|\) is also 3.
This is key for solving inequalities involving absolute values, as you have to consider both the positive and negative scenarios.
For the problem \(x > |y|\), we need to analyze both cases of y being either positive or negative and see how it impacts the inequality.
coordinate plane
The coordinate plane is a two-dimensional plane formed by two perpendicular lines: the x-axis (horizontal) and the y-axis (vertical).
Each point on this plane is defined by a pair of coordinates \((x, y)\).
For sketching inequalities like \(x > |y|\), it helps visualize the relationship between x and y.
The boundary lines for this exercise are \(x = y\) and \(x = -y\).
Drawing these lines will make it easier to identify the regions where the inequality holds true. On the plane, you'll see that these lines form a 'V' shape opening to the right, splitting the plane into more understandable sections for shading.
shading regions
Shading regions is a method used to visually represent the solutions of inequalities on a graph.
Once you have drawn the boundary lines \(x = y\) and \(x = -y\), you'll determine where to shade based on the inequality's direction.
Because the inequality is \(x > |y|\), you are looking for the area where x is greater than both y and -y.
Typically, we shade the appropriate region (the region satisfying the inequality) to the right of those boundary lines.
This shading indicates all the \((x, y)\) coordinates where x indeed is greater than \(|y|\).
Proper shading helps ensure we've represented the inequality accurately.
inequality boundaries
To visualize and solve an inequality graphically, identifying and plotting its boundary is crucial.
For the inequality \(x > |y|\), this boundary is expressed as \(x = |y|\).
This absolute value equation translates to two linear equations: \(x = y\) and \(x = -y\), which form the corners of a 'V' combination.
Graph these lines on the coordinate plane to set the stage for shading appropriately.
The boundary lines themselves are not part of the solution for \(x > |y|\) since the inequality does not include equality—that is, points on these lines do not satisfy \(x > |y|\).
The actual solution lies in the region where \(x\) is strictly greater than \(y\) and \(-y\), excluding the lines themselves.

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