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Find the area of the region enclosed by ...

Find the area of the region enclosed by the curves
`y=x^(2)` and y = 2x

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To find the area of the region enclosed by the curves \( y = x^2 \) and \( y = 2x \), we can follow these steps: ### Step 1: Find the Points of Intersection To find the area between the two curves, we first need to determine where they intersect. We set the equations equal to each other: \[ x^2 = 2x \] Rearranging gives: \[ x^2 - 2x = 0 \] Factoring out \( x \): \[ x(x - 2) = 0 \] Thus, the solutions are: \[ x = 0 \quad \text{and} \quad x = 2 \] ### Step 2: Determine the Area Between the Curves The area \( A \) between the curves from \( x = 0 \) to \( x = 2 \) can be calculated using the integral of the upper curve minus the lower curve. Here, \( y = 2x \) is the upper curve and \( y = x^2 \) is the lower curve. \[ A = \int_{0}^{2} (2x - x^2) \, dx \] ### Step 3: Calculate the Integral Now we compute the integral: \[ A = \int_{0}^{2} (2x - x^2) \, dx \] This can be split into two separate integrals: \[ A = \int_{0}^{2} 2x \, dx - \int_{0}^{2} x^2 \, dx \] Calculating each integral: 1. For \( \int 2x \, dx \): \[ \int 2x \, dx = x^2 \quad \text{(evaluated from 0 to 2)} \] \[ = [2^2 - 0^2] = 4 \] 2. For \( \int x^2 \, dx \): \[ \int x^2 \, dx = \frac{x^3}{3} \quad \text{(evaluated from 0 to 2)} \] \[ = \left[\frac{2^3}{3} - \frac{0^3}{3}\right] = \frac{8}{3} \] ### Step 4: Combine the Results Now, substituting back into the area equation: \[ A = 4 - \frac{8}{3} \] To combine these, we convert 4 into a fraction with a denominator of 3: \[ 4 = \frac{12}{3} \] Thus: \[ A = \frac{12}{3} - \frac{8}{3} = \frac{4}{3} \] ### Final Answer The area of the region enclosed by the curves \( y = x^2 \) and \( y = 2x \) is: \[ \boxed{\frac{4}{3}} \text{ square units} \]
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