Graph the solution set of each system of inequalities.y≤log⁡xy\le\log xy≥∣x−2∣y\ge\left|x-2\right|

Identify the domain and shape of each inequality. For the first inequality, $$y \leq \log x$$, note that the logarithm function $$\log x is $$defined only for $$x \u003e 0. $$The graph of $$y = \log x is a $$curve increasing slowly and passing through the point $$(1,0). $$For the second inequality, $$y \geq |x - 2|$$, recognize that $$y = |x - 2| is a V-$$shaped graph with its vertex at $$(2,0). $$The inequality $$y \geq |x - 2|$$ means the solution includes the region on or above this V-shaped graph. Graph the boundary lines first: plot $$y = \log x$$ for $$x \u003e 0$$ and $$y = |x - 2|$$ for all real $$x. $$Use a solid line for both since the inequalities include equality ($$\leq$$ and $$\geq). $$Determine the solution regions for each inequality separately. For $$y \leq \log x$$, shade the region below or on the curve $$y = \log x. $$For $$y \geq |x - 2|$$, shade the region above or on the V-shaped graph. Find the intersection of the two shaded regions from the previous step. The solution set of the system is where both shaded regions overlap. This overlapping region satisfies both inequalities simultaneously.

Ch. 5 - Systems and Matrices

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Lial 13th Edition

Ch. 5 - Systems and Matrices

문제 65

6장, 문제 65

Graph the solution set of each system of inequalities.
$y \leq \log x$
$y \geq ∣ x - 2 ∣$

검증된 단계별 안내

Identify the domain and shape of each inequality. For the first inequality, $y \leq \log x$, note that the logarithm function $\log x$ is defined only for $x > 0$. The graph of $y = \log x$ is a curve increasing slowly and passing through the point $(1,0)$.

For the second inequality, $y \geq |x - 2|$, recognize that $y = |x - 2|$ is a V-shaped graph with its vertex at $(2,0)$. The inequality $y \geq |x - 2|$ means the solution includes the region on or above this V-shaped graph.

Graph the boundary lines first: plot $y = \log x$ for $x > 0$ and $y = |x - 2|$ for all real $x$. Use a solid line for both since the inequalities include equality ($\leq$ and $\geq$).

Determine the solution regions for each inequality separately. For $y \leq \log x$, shade the region below or on the curve $y = \log x$. For $y \geq |x - 2|$, shade the region above or on the V-shaped graph.

Find the intersection of the two shaded regions from the previous step. The solution set of the system is where both shaded regions overlap. This overlapping region satisfies both inequalities simultaneously.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

10m

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Graphing Inequalities

Graphing inequalities involves shading the region of the coordinate plane that satisfies the inequality. For example, y ≤ f(x) means shading all points on or below the curve y = f(x). Understanding how to represent inequalities graphically helps visualize solution sets for systems of inequalities.

Logarithmic Functions

A logarithmic function, such as y = log x, is the inverse of an exponential function. It is defined only for x > 0 and has a characteristic curve that increases slowly and passes through (1,0). Knowing its domain and shape is essential for correctly graphing inequalities involving logarithms.

Absolute Value Functions

The absolute value function y = |x - a| creates a V-shaped graph with its vertex at (a, 0). It outputs the distance of x from a, always non-negative. When graphing inequalities like y ≥ |x - 2|, the solution includes points on or above this V-shaped graph.

Graph the solution set of each system of inequalities.y≤logxy\(\le\]\log\) xy≥∣x−2∣y\(\ge\]\left\)|x-2\(\right\)|