Question

If (7, 5) lies on the graph of the linear equation 4x-ky=8, then find the value of k

Answer 1

Answer:

Step-by-step explanation:

My explanation is in photograph

Answer 2

Answer:

4

Step-by-step explanation:

4×7-k×5-8=0

28-8-k×5=0

20-k×5=0

-k×5= -20

-k= -20 upon 5

-k = -4 ( Both Sides [- Minus] Sign Cut)

Therefore, k=4