# Answer to Question #29272 in Calculus for jeff

Question #29272

how to find the two tangent to the Hyperbola y=1/x passing through the point P(2,-4),

show that the straight line Y=mx+b is a tangent to

y = -x2- 3x+4 iff (m+3)2= 4(b-4)

show that the straight line Y=mx+b is a tangent to

y = -x2- 3x+4 iff (m+3)2= 4(b-4)

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