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if -xy+ 1 + x^2 = 2y then find the equations of all tangent lines to the curve y= -2

If Xy 1 X2 2y Then Find The Equations Of All Tangent Lines To The Curve Y 2 class=

Sagot :

semsee45

Answer:

(see attached workings)

y = -4x + 2

y = (4/5)x + 2/5

Step-by-step explanation:

  • Rewrite the function to make y the subject.
  • Find the x values of the points when y=-2 by substituting y=-2 into the rewritten function
  • Differentiate the function
  • Input the found values of x into the differentiated function to find the gradients of the tangents to the curve at y=-2
  • Use the equation of a straight line and the points where y=-2 and the found gradients to find the equation of the tangent lines.

See attached for complete step-by-step.

View image semsee45
View image semsee45
View image semsee45
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