Question

Do the lines of equation 2x + Y + 4 is = 0 and X + 2 Y - 5 = 0 intersect .justify your answer

Answer 1

Step-by-step explanation:

Let A1=2 , B1=1, C1=4

A2 =1,B2=2, C2= -5

= A1/A2 ,B1/B2 ,C1/C2

= 2/1, 1/2, 4/-5

= A1/A2 is not equal B1/B2 is not equal C1/C2

so, this equation will intersect.