Asked by jump
determine any values of x for which a tangent line to the curve f(x)=1/x will have a slope of -4
Answers
Answered by
Reiny
if y = 1/x
then dy/dx = -1/x^2
so -1/x^2 = -4
x^2 = 1/4
x = ± 1/√2
then dy/dx = -1/x^2
so -1/x^2 = -4
x^2 = 1/4
x = ± 1/√2
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