Question

find the value of k so that graphs of 4x-ky=9 and 12x-9y=18 will be parallel

Answer 1

Answer:

Step-by-step explanation:

Hope it will help

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Answer 2

Concept Introduction:

For the lines to be parallel both lines should have same slope.

Given: Two equations of line.,$4x-ky=9$ and $12x-9y=18$.

To Find:

We have to find the value of, k.

Solution:

According to the problem,

For the two given lines to be parallel $a/A=b/B$

∴$4/12=-k/-9$

⇒$k=\frac{4}{12} *9 =3$

Final Answer:

The value of k is $3$.

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