Question

for what value of p following pair of linear equation has unique solution
4x+py+8=0 and 2x+2y+2=0​

Answer 1

Answer:

4

Step-by-step explanation:

Answer 2

Answer:

4x +py +8=0

a1 = 4 , b1 = p , c1 = 8

2x +2y +2 = 0

a2 =2, b2 = 2, c2 = 2

Since the given pair of equation has unique solution

Therefore,

a1/a2 is not = b1/b2

4/2 is not = p/2

=> p is not = 4

Hence the given pair of equation has solution for all values of p except 4