Question

if the point (2,-2) lies on the graph of the linear equation 5x+ky = 4 , find the value of k
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Answer 1

Answer:

If the point lies on the graph then it must satisfy the given equation so

5*2 + k*(-2)=4

2k=6

k=3

Explanation:

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Answer 2

Answer:

x = 2

y = -2

$5x+ky = 4$

$5 \times 2+k \times - 2= 4$

$10 + k \times - 2 = 4$

$10 + ( - 2)k = 4$

$10 - 2k = 4$

$- 2k = 4 - 10$

$- 2k = - 6$

$k = \frac{ - 6}{ - 2}$

$k = 3$