Knowee
Questions
Features
Study Tools

The area of the figure bounded by y = x2 – 2x + 3 and the line tangent to it at M (2, 3) and y-axis is 8/k, where k is ____

Question

The area of the figure bounded by

y=x22x+3 y = x^2 - 2x + 3
and the line tangent to it at
M(2,3) M (2, 3)
and the y-axis is 8k \frac{8}{k} , where k k is ____

🧐 Not the exact question you are looking for?Go ask a question

Solution

The problem is asking for the area of the figure bounded by the parabola y = x^2 - 2x + 3, the line tangent to it at the point M(2,3), and the y-axis.

Step 1: Find the equation of the tangent line at M(2,3).

The derivative of y = x^2 - 2x + 3 is y' = 2x - 2.

At the point M(2,3), the slope of the tangent line is y'(2) = 2*2 - 2 = 2.

So, the equation of the tangent line is y - 3 = 2(x - 2), or y = 2x - 1.

Step 2: Find the x-intercept of the tangent line.

Set y = 0 in the equation of the tangent line to get 0 = 2x - 1, or x = 1/2.

Step 3: Find the area of the figure.

The figure is a trapezoid with bases 3 (the y-coordinate of M) and 3 - 1/2 (the y-coordinate of the x-intercept of the tangent line) and height 2 - 1/2 (the x-coordinate of M minus the x-intercept of the tangent line).

So, the area of the figure is 1/2 * (3 + 3 - 1/2) * (2 - 1/2) = 8/2 = 4.

Step 4: Set the area equal to 8/k and solve for k.

4 = 8/k

k = 8/4 = 2.

So, the value of k is 2.

This problem has been solved

Similar Questions

The area of the region lying between the line x – y + 2 = 0, the curve  and y-axis, is (in square units)

Find the area of the region between the x-axis and the curve(a) y = e−3x for x ≥ 0. (b) y = 8x2−4 for x ≥ 4

In the figure below not drawn to scale, AB = 28 cm. DE = 4 cm. CE = 16 cm. Find the area of the shaded part.

Try AgainYour answer is incorrect.Find the area of the figure. (Sides meet at right angles.)5yd2yd3yd8yd4yd

What is the area bounded by the line 𝑥+2𝑦=4 and the two axes in the Cartesian plane?

1/2

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.