Question

$if \: x = - 2 \: and \: y = - 4 \: is \: the \: solution \: of \: pair \: of \: linear \: equations \: y = mx \: and \: kx + 2y = 2 \: then \: find \: the \: value \: of \: m \: and \: k$
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Answer 1

Answer:

Equations:

y = mx

kx + 2y = 2

When x = -2, y = -4:

=> kx + 2y = 2

=> (-2)k + 2(-4) = 2

=> k = -5

y = mx

=> -4 = (-2)m

=> m = 2

__________________

Answer 2

Solutions:

y = pc

kx + 2y = 2

-2k + 2(-4) = 2

-2k - 8 = 2

-2k = 10

k = -5

y = px

-4 = -2p

p = 2

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