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1. It lies on y-axis.
2. It loes on x - axis.
3. given (1, -2) => (x ,y)
2x - y = p
Put value of x and co-ordinate.
2(1) - (-2) = p
2 + 2 = p
p = 4
4. Given equation: 2x - 3y = 12
Put x = 0
2(0) - 3y = 12
- 3y = 12
y = -12/3
y = -4
Put y = 0
2x - 3(0) = 12
2x = 12
x = 12/2
x = 6
When x =0 then y = -4
When y = 0 then x =6
5. Given equation: 3x - ay = 6
(4,3) => (x,y)
So, x = 4 , y = 3
Put value of x and y
3(4) - a(3) = 6
12 -3a = 6
-3a = 6 - 12
-3a = -6
3a = 6
a = 6/3
a = 2
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