Question

Guys pls answer this​

Answer 1

5x-2=0

x=2/5

x=0.4

(0,0.4)

this eq. will have only 1 solution

3x+y=7

y=7-3x

(0,7),(1,4),(2,1),(3,-2)

3x-ky=5. (-1,1)

3(-1)-k(1)=5

-3-k=5

k=-8