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  1. The area (in sq. unit) of the triangle formed by the three graphs of the equations x = 4, y = 3, and 3x + 4y = 12, is
    1. 12
    2. 10
    3. 6
    4. 8
Correct Option: C

Here , x = 4 ....... (1)
y = 3 ......... (2)
3x + 4y = 12 ....... (3)
Putting x = 0 in 3rd equation we get y = 4
Putting y = 0 in 3rd equation we get x = 3
The triangle will be formed by joining the points (3, 0) and (0, 4). So,
base = 3 and altitude = 4

Area =
1
× b × h
2
Area =
1
× 3 × 4 = 6
2



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