Question

plzzz help me for this 3 question

Answer 1

4. 2x + 3y = 6 ...
it cuts y-axis when x=0 ...
so.. put x = 0 => 2(0) + 3y = 6
=> y = 6/3 =2
=> point is (0.2)

5. 2x + ky = 10k ..
it passes through (2,0)
so.. put x=2 and y=0 in eqn
=> 2(2) + k(0) = 10k
=> 4 = 10k
=> k = 4/10 = 2/5 = 0.4

6. 3x + 4y = 12 ...
to check that the point (0,3 ) lies on it or not...
put x=0 and y=3 ,
LHS :- 3(0) + 4(3) = 12 = RHS...
point (0,3 ) satisfying this eqn .. that means it lies on that line ...