Question

find 5x-4y+8=0 ,7x+by-9=0 have interest at a point or parallel or conicident

Answer 1

Answer:

Step-by-step explanation:

5x - 4y + 8 = 0                                  

7x + 6y - 9 = 0                                  

As we know ,

a1 = +5 , a2 = +7 ,

b1 = -4 , b2 = +6 ,

c1 = +8 , c2 = -9.

Therefore ,

a1/a2 = 5/7 ,

b1/b2 = -2/3 ,

c1/c2 = -8/9

as , a1/a2 ≠ b1/b2 ≠ c1/c2

therefore the equation will intersect at only one point.

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