Question

if (2, -2) is a root of 5-2y = k then k =​

Answer 1

$\sf\huge\bold{Answer:}$

Given :

• 5-2y=k
• Root of equation :(2,-2)

To find :

Value of k

Solution :

• General form of linear equation with two variable :

ax+by+c=0

• Given equation in General form

:⟶ 0x-2y+5-k=0

• Inserting Given values of root in given equation [x=2,y= -2 ]

:⟶ 0x-2y+5-k=0

:⟶0(2)-2(-2)+5-k=0

:⟶0+4+5-k =0

:⟶9-k=0

:⟶9=k

:⟶k=9

Value of k is 9

Answer 2

Answer:

k=1 , k= - 4

Step-by-step explanation:

5- 2y=k

5- 2(2)=k

5-4=k

therefore, k=1

5- 2(-2)=k

5- 9=k

therefore, k= 5- 9= - 4