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Q.What is the slope of the function Y = 5x⁴ when x = 10 ?

Tamil Nadu DgeTamil Nadu HSC First Year (DGE) Commerce Board 2025Subjective· 3mImportance★★★★★
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Slope = derivative of the function. For Y = 5x⁴, dY/dx = 20x³, and at x = 10 the slope = 20,000.

The slope of a function at a given point is its first derivative at that point.

Given function:

Y = 5x⁴

Step 1 — Differentiate using the power rule (d/dx of x^n = n·x^(n−1)):

dY/dx = 5 × 4 × x^(4−1) = 20x³

Step 2 — Substitute x = 10:

dY/dx = 20 × (10)³ …

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