Question

if (3,2) lies on kx + y =8 then k= _____

Answer 1

3k+2=8 3k=8-2=6. k=6/3=2

Answer 2

The value of 'k' is equal to 2.

Given:

Point (3, 2) lies on the line kx + y = 8.

To Find:

The value of k.

Solution:

→ If a point (p, q) lies on a curve ax + by + c = 0, then it must satisfy the equation of the curve.

                                        ∴ a(p) + b(q) + c = 0

→ Since the point (3, 2) lies on the line kx + y = 8, therefore it must satisfy the equation of this line:

                                           ∴ k(3) + 2 = 8

                                           ∴ 3k = 6

                                           ∴ k = 2

Therefore the value of 'k' comes out to be equal to 2.

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