Planes and line
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Should be C
The graph will cut X axis as (-a,0) and (-b,0)
Stmt 1 = a+b = -1 => We cannot find the actual value of a and b- NOT SUFF
Stmt 2 gives us equation ab=-6 => We cannot find the actual value of a and b - NOT SUFF
Together we can find values of a and b so SUFF
The graph will cut X axis as (-a,0) and (-b,0)
Stmt 1 = a+b = -1 => We cannot find the actual value of a and b- NOT SUFF
Stmt 2 gives us equation ab=-6 => We cannot find the actual value of a and b - NOT SUFF
Together we can find values of a and b so SUFF