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What is the point of intersection of the lines x + y = 5 and 2x - y = 1?
What is the point of intersection of the lines x + y = 5 and 2x - y = 1?
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Practice Questions
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Q1
What is the point of intersection of the lines x + y = 5 and 2x - y = 1?
(2, 3)
(3, 2)
(1, 4)
(4, 1)
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Solving the equations simultaneously, we find x = 2 and y = 3. Thus, the point of intersection is (2, 3).
Questions & Step-by-step Solutions
1 item
Q
Q: What is the point of intersection of the lines x + y = 5 and 2x - y = 1?
Solution:
Solving the equations simultaneously, we find x = 2 and y = 3. Thus, the point of intersection is (2, 3).
Steps: 10
Show Steps
Step 1: Write down the two equations: x + y = 5 and 2x - y = 1.
Step 2: Solve the first equation for y: y = 5 - x.
Step 3: Substitute y in the second equation: 2x - (5 - x) = 1.
Step 4: Simplify the equation: 2x - 5 + x = 1.
Step 5: Combine like terms: 3x - 5 = 1.
Step 6: Add 5 to both sides: 3x = 6.
Step 7: Divide both sides by 3: x = 2.
Step 8: Substitute x back into the first equation to find y: y = 5 - 2.
Step 9: Calculate y: y = 3.
Step 10: Write the point of intersection as (x, y): The point of intersection is (2, 3).
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