Consider the two graphs and

MATHEMATICS · Numerical · AP · Calculus AB · Differentiation: Composite, Implicit, and Inverse Functions · Differentiation: Composite, Implicit, and Inverse Functions

Problem

Consider the two graphs

y=2x

and

x^2-xy+2y^2=28

. The absolute value of the tangent of the angle between the two curves at the points where they meet is

Related theory

Angle Between Two Lines
Straight Lines
Advanced Differentiation
Implicit and parametric differentiation
Derivatives of implicit functions
Continuity and Differentiability

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