1 Chalkboard

Figure 1: Why this method is valid?

Figure 2: Tangent to contrained level curve

Figure 3: Both gradient vector are parallel

Figure 4: Warning: Can’t use second derivatives

Figure 5: Compare values at \(f\)

Figure 1: Why this method is valid?

Figure 2: Tangent to contrained level curve

Figure 3: Both gradient vector are parallel

Figure 4: Warning: Can’t use second derivatives

Figure 5: Compare values at \(f\)