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The area enclosed by the pair of lines $xy = 0$ , the line $x - 4 = 0$ and $y + 5 = 0$ is
The area enclosed by the pair of lines $xy = 0$ , the line $x - 4 = 0$ and $y + 5 = 0$ is
Updated On: May 19, 2024
- $10$ s units.
- $20$ s units
- $0$ s units.
- $\frac {5}{4}$ s units.
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The Correct Option is B
Solution and Explanation
Given, pair of lines
$xy = 0, x - 4 = 0 $
$\Rightarrow x = 4$
and $y + 5 = 0$.
The figure is a rectangle.
In which length is 5 unit and breadth is 4 unit
So, area $= 4 \times 5 = 20$ sq unit
$xy = 0, x - 4 = 0 $
$\Rightarrow x = 4$
and $y + 5 = 0$.
The figure is a rectangle.
In which length is 5 unit and breadth is 4 unit
So, area $= 4 \times 5 = 20$ sq unit
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Concepts Used:
Horizontal and vertical lines
Horizontal Lines:
- A horizontal line is a sleeping line that means "side-to-side".
- These are the lines drawn from left to right or right to left and are parallel to the x-axis.
Equation of the horizontal line:
In all cases, horizontal lines remain parallel to the x-axis. It never intersects the x-axis but only intersects the y-axis. The value of x can change, but y always tends to be constant for horizontal lines.
Vertical Lines:
- A vertical line is a standing line that means "up-to-down".
- These are the lines drawn up and down and are parallel to the y-axis.
Equation of vertical Lines:
The equation for the vertical line is represented as x=a,
Here, ‘a’ is the point where this line intersects the x-axis.
x is the respective coordinates of any point lying on the line, this represents that the equation is not dependent on y.
⇒ Horizontal lines and vertical lines are perpendicular to each other.
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