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6 In the xy-plane, the line determined b...

6 In the xy-plane, the line determined by the points (2,k) and (32,k) passes through the origin. Which of the following could be the value of k ?

A

0

B

4

C

8

D

16

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to find the value of \( k \) such that the line determined by the points \( (2, k) \) and \( (32, k) \) passes through the origin. ### Step-by-Step Solution: 1. **Understanding the Points**: The points given are \( (2, k) \) and \( (32, k) \). Both points have the same y-coordinate, which is \( k \). 2. **Finding the Slope**: The slope \( m \) of a line passing through two points \( (x_1, y_1) \) and \( (x_2, y_2) \) is given by: \[ m = \frac{y_2 - y_1}{x_2 - x_1} \] For our points \( (2, k) \) and \( (32, k) \): \[ m = \frac{k - k}{32 - 2} = \frac{0}{30} = 0 \] This means the line is horizontal. 3. **Equation of the Line**: Since the line is horizontal and passes through the origin, the equation of the line can be expressed as: \[ y = k \] However, since it passes through the origin, we also have \( y = 0 \) at \( x = 0 \). 4. **Setting the Line Through the Origin**: For the line to pass through the origin, the y-coordinate \( k \) must be equal to 0. Thus, we have: \[ k = 0 \] 5. **Conclusion**: The only value of \( k \) that satisfies the condition that the line passes through the origin is: \[ k = 0 \] ### Final Answer: The value of \( k \) could be \( 0 \).
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Knowledge Check

  • If x^2 + k = G and x is an integer, which of the following could be the value of G - k ?

    A
    7
    B
    8
    C
    9
    D
    10
  • In the xy-plane, a circle with center O passes through the point (2, 0) and has a radius of 4. Which of the following could be the equation of circle O?

    A
    `(x-2)^(2)+(y+4)^(2)=4`
    B
    `(x-2)^(2)+(y+4)^(2)=16`
    C
    `(x-4)^(2)+(y+2)^(2)=16`
    D
    `(x+2)^(2)+(y-2)^(2)=16`
  • The function f(x)=x^(3)-x^(2)-x-11/4 s graphed in the xy-plane above. If k is a constant such that the equation f(x)=k has three real solutions, which of the following could be the value of k ?

    A
    2
    B
    0
    C
    `-2`
    D
    `-3`
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