plz Ans with explanation in notebook and in graph
Answers
Answer :
Given equations :
- X = 2
- X = 4
- Y = 1
- Y - 3 = 0 => Y = 3
Note :
- The graph of line X = k is parallel to y-axis and passes through the point X = k
- The graph of line Y = k is parallel to x-axis and passes through the point Y = k
Keeping the points mentioned in note in mind , I've sketched the graph
Finding area bounded by lines :
- After sketching the graph , find out the points of intersection using the graph , The points that we get are A(2,1) B(4,1) C(2,3) D(4,3)
- Find out the distance between the points
Distance between points (a,b) and (c,d) is
Distance = √(a-c)² + (b-d)²
Distance between AB = √(4-2)² + (1-1)²
Distance between AB = √(2)²
Distance between AB = 2 units
Distance between BC = √(4-4)² + (3-1)²
Distance between BC = √2²
Distance between BC = 2 units
Distance between CD = √(4-2)² + (3-3)²
Distance between CD = √2²
Distance between CD = 2 units
Distance between DA = √(2-2)² + (3-1)²
Distance between DA = √2²
Distance between DA = 2 units
Here we got all sides equal , hence it could be a square or rhombus , to confirm if it is a square or rhombus , let's check the diagonal lengths
Let diagonals be AC and BD
Distance between AC = √(4-2)²+(3-1)²
Distance between AC = √2²+2²
Distance between AC = 2√2 units
Distance between BD = √(2-4)²+(3-1)²
Distance between BD = √2²+2²
Distance between BD = 2√2 units
Here , we got diagonal lengths equal , hence the figure is a square
- Area of a square = (side length)²
- Area of square = (2)²
- Area of square = 4 sq.units
Hence, area bounded by the graph is 4sq.units