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Find the area of the region between y = x² and y = 2x using a calculator.

A) 1/2
B) 2/3
C) 3/4
D) 4/5

1 Answer

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Final answer:

The area of the region between the curves y = x² and y = 2x is -2/3 square units.

Step-by-step explanation:

To find the area of the region between the curves y = x² and y = 2x, we need to determine the points at which the curves intersect. By setting the two equations equal to each other, we get:

x² = 2x

By subtracting 2x from both sides and rearranging, we get:

x² - 2x = 0

Factoring out x, we get:

x(x - 2) = 0

This means that x = 0 or x = 2. These are the points where the curves intersect.

To find the area between the curves, we integrate the difference between the two equations over the interval [0, 2]. The area can be calculated as:

Area = ∫(2x - x²) dx, from 0 to 2

By integrating, we get:

Area = [(x²/2) - (x³/3)] evaluated from 0 to 2

Plugging in the values, we get:

Area = [(2²/2) - (2³/3)] - [(0²/2) - (0³/3)]

Area = (2 - 8/3) - 0

Area = 6/3 - 8/3

Area = -2/3

Therefore, the area of the region between the curves y = x² and y = 2x is -2/3 square units.

User Hanumanth
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