The area of the triangle formed by the straight line 3x + 2y = 6

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 Multiple Choice QuestionsMultiple Choice Questions

1.

What would be the equation of the line, which intercepts x-axis at -5 and perpendicular to the line y = 2x - 3?

  • x - 2y = -5

  • x + 2y = 5

  • x + 2y = -5

  • x - 2y = 5


2.

The area of the triangle formed by the graphs of the equations x = 4, y = 3 and 3x + 4y = 12 is

  • 4 sq units

  • 12 sq units

  • 6 sq units

  • 6 sq units

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3.

The coordinates of the vertices of a right angled triangle are P(3, 4), Q(7, 4) and R(3, 8), the right angle being at P. The coordinates of the orthocentre of increment PQR are

  • (3, 4)

  • (7, 4)

  • (3, 8)

  • (3, 8)

588 Views

4.

The area (in square units) of the triangle formed by the graphs of the equations x = 4,  y = 3 and 3x + 4y = 12 is

  • 24

  • 12

  • 6

  • 6

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5.

If the ordinate and abscissa of the point (k,  2k -1) be equal, then the value of k is

  • 0

  • -1

  • 1

  • 1

578 Views

6.

Area of the triangle formed by the graph of the straight lines x - y = 0,  x + y = 2 and x-axis is 

  • 1 sq unit

  • 2 sq units

  • 1 sq units

  • None of these

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7.

The graphs of x + 2y = 3 and 3x - 2y = 1 meet the Y-axis at two points having distance

  • 8 over 3 space units
  • 4 over 3 units
  • 1 unit

  • 1 unit

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8.

The value of k for which the graphs of (k - 1)x + y - 2 = 0 and (2 - k)x - 3y + 1 = 0 are parallel is

  • 1 half
  • negative 1 half
  • 2

  • 2

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9.

The area of the triangle formed by the straight line 3x + 2y = 6 and the co-ordinate axes is

  • 3 square units

  • 6 square units

  • 4 square units

  • 4 square units


A.

3 square units

Putting y = 0 in the equation 3x + 2y = 6
3x + 0 = 6 ⟹ x = 2


∴   Point of intersection on x-axis =  (2, 0)
Putting x = 0, in the equation
   3x + 2y = 6
    0 + 2y = 6
⟹    y = 3
∴   Point of intersection on y-axis = (0, 3)
∴    OA = 2,   OB = 3

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10.

The length of the intercept of the graph of the equation 9x - 12y = 108 between the two axes is

  • 15 units

  • 9 units

  • 12 units

  • 18 units

476 Views

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