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The area bounded by the parabola y=x^(2)...

The area bounded by the parabola `y=x^(2)` and the line `y=2x is 4//3` sq. units.

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To determine if the area bounded by the parabola \( y = x^2 \) and the line \( y = 2x \) is indeed \( \frac{4}{3} \) square units, we will follow these steps: ### Step 1: Find the points of intersection We need to find the points where the parabola and the line intersect. This requires solving the equations \( y = x^2 \) and \( y = 2x \). Set \( x^2 = 2x \): \[ x^2 - 2x = 0 \] Factoring gives: \[ x(x - 2) = 0 \] Thus, \( x = 0 \) or \( x = 2 \). Now, substituting these \( x \)-values back into either equation to find the corresponding \( y \)-values: - For \( x = 0 \): \( y = 0^2 = 0 \) → point \( (0, 0) \) - For \( x = 2 \): \( y = 2^2 = 4 \) → point \( (2, 4) \) ### Step 2: Set up the integral for the area The area \( A \) between the curves from \( x = 0 \) to \( x = 2 \) can be calculated using the integral: \[ A = \int_{0}^{2} (2x - x^2) \, dx \] Here, \( 2x \) is the line and \( x^2 \) is the parabola. ### Step 3: Calculate the integral Now, we compute the integral: \[ A = \int_{0}^{2} (2x - x^2) \, dx \] Calculating the integral: \[ A = \int_{0}^{2} 2x \, dx - \int_{0}^{2} x^2 \, dx \] Calculating each integral separately: 1. \( \int 2x \, dx = x^2 \) 2. \( \int x^2 \, dx = \frac{x^3}{3} \) Now evaluating from 0 to 2: \[ \int_{0}^{2} 2x \, dx = [x^2]_{0}^{2} = 2^2 - 0^2 = 4 \] \[ \int_{0}^{2} x^2 \, dx = \left[\frac{x^3}{3}\right]_{0}^{2} = \frac{2^3}{3} - \frac{0^3}{3} = \frac{8}{3} \] Now substituting back into the area calculation: \[ A = 4 - \frac{8}{3} \] To combine these, convert 4 into a fraction: \[ 4 = \frac{12}{3} \] Thus, \[ A = \frac{12}{3} - \frac{8}{3} = \frac{4}{3} \] ### Conclusion The area bounded by the parabola \( y = x^2 \) and the line \( y = 2x \) is indeed \( \frac{4}{3} \) square units.
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