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The equation of a curve is given as y=x^...

The equation of a curve is given as `y=x^(2)+2-3x`.
The curve intersects the x-axis at

A

Statement-I is true, Statement-II is true, Statement-II is correct explanation for statement-I

B

Statement-I is true, Statement-II is true, Statement-II is NOT a correct explanation for statement-I

C

Statement-I is true, Statement-II is false.

D

Statement-I is false and Statement-II is true.

Text Solution

AI Generated Solution

The correct Answer is:
To find the points where the curve intersects the x-axis, we need to set the equation of the curve equal to zero. The given equation of the curve is: \[ y = x^2 + 2 - 3x \] ### Step 1: Set the equation to zero To find the x-intercepts, we set \( y = 0 \): \[ 0 = x^2 + 2 - 3x \] This can be rearranged to: \[ x^2 - 3x + 2 = 0 \] ### Step 2: Identify coefficients In the quadratic equation \( ax^2 + bx + c = 0 \), we identify the coefficients: - \( a = 1 \) - \( b = -3 \) - \( c = 2 \) ### Step 3: Use the quadratic formula The roots of the quadratic equation can be found using the quadratic formula: \[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \] Substituting the values of \( a \), \( b \), and \( c \): \[ x = \frac{-(-3) \pm \sqrt{(-3)^2 - 4 \cdot 1 \cdot 2}}{2 \cdot 1} \] ### Step 4: Simplify the expression Calculating the discriminant: \[ b^2 - 4ac = 9 - 8 = 1 \] Now substituting back into the formula: \[ x = \frac{3 \pm \sqrt{1}}{2} \] ### Step 5: Calculate the roots This simplifies to: \[ x = \frac{3 \pm 1}{2} \] Calculating the two possible values for \( x \): 1. \( x_1 = \frac{3 + 1}{2} = \frac{4}{2} = 2 \) 2. \( x_2 = \frac{3 - 1}{2} = \frac{2}{2} = 1 \) ### Step 6: Write the coordinates of intersection The curve intersects the x-axis at the points: - \( (2, 0) \) - \( (1, 0) \) ### Final Answer: The curve intersects the x-axis at the points \( (2, 0) \) and \( (1, 0) \). ---
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