Question

Find dy/dx, if y=1/x^2
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Answer 1

Answer:

Add Δx. When x increases by Δx, then y increases by Δy : y + Δy = f(x + Δx)

Subtract the Two Formulas. From: y + Δy = f(x + Δx) Subtract: y = f(x) To Get: y + Δy − y = f(x + Δx) − f(x) Simplify: Δy = f(x + Δx) − f(x)

Rate of Change

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