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Question

The graph of the given line 3x - 4y = 0 will pass through which of the following points?

The correct answer is

(4, 3)

Finding Points on the Line Equation 3x - 4y = 0

To determine which point lies on the graph of the line given by the equation $3x - 4y = 0$, we need to check if the coordinates of each point satisfy the equation. A point $(x, y)$ lies on the line if substituting its $x$ and $y$ values into the equation makes the equation true.

Testing the Given Points

Let's test each option:

  • Option 1: (3, 4)

    Substitute $x=3$ and $y=4$ into the equation $3x - 4y = 0$: $3(3) - 4(4) = 9 - 16 = -7$ Since $-7 \neq 0$, the point (3, 4) does not lie on the line.

  • Option 2: (4, 3)

    Substitute $x=4$ and $y=3$ into the equation $3x - 4y = 0$: $3(4) - 4(3) = 12 - 12 = 0$ Since $0 = 0$, the point (4, 3) satisfies the equation and lies on the line.

  • Option 3: (-4, 3)

    Substitute $x=-4$ and $y=3$ into the equation $3x - 4y = 0$: $3(-4) - 4(3) = -12 - 12 = -24$ Since $-24 \neq 0$, the point (-4, 3) does not lie on the line.

Conclusion

Based on the calculations, only the point (4, 3) satisfies the equation $3x - 4y = 0$. Therefore, the graph of the line $3x - 4y = 0$ passes through the point (4, 3).

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Important Questions from Co-ordinate Geometry

  1. In which ratio the point (-3, p) divides the line segment joining the points (-5, -4) and (-2, 3)?

  2. In which quadrant both abscissa and ordinate are negative?

  3. Find the slope of the line joining the points (3, -4) and (5, 2).

  4. A1 (x1, y1), A2 (x2, y2), A3 (x3, y3) and A4 (x4, y4) are 4 points, p1 divides A1A2 in the ratio 1 ∶ 1, p2 divides P1A3 in the ratio 1 ∶ 2, P3 divides p2A4 in the ratio 1 ∶ 3. Then the coordinates of p3 are:

  5. If (3, 2) are coordinates of the centroid of a triangle, whose vertices are (0, 4), (-2, 0) and (p, 2), then find the value of p.

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