MCQ Questions for Class 9 Maths Linear Equations For Two Variables Quiz 1 - MCQGeeks.com

How many linear equation in x and y can be satisfied by x = 1 and y = 2?

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only one
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two
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infinitely many
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three

Solution of linear equation 2x + 0.y + 9 = 0 is

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(\(\frac{9}{2}\), m)
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(n, \(\frac{-9}{2}\))
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(0, \(\frac{-9}{2}\))
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(\(\frac{-9}{2}\), 0)

If (3, 2) is the solution 3x - ky = 5, then k equals of the equation

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2
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4
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3
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\(\frac{1}{2}\)

Cost of book (x) exceeds twice the cost of pen (y) by RsThis statement can be expressed as linear equation.

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x - 2y - 10 = 0
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2x - y - 10 = 0
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2x + y - 10 = 0
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x - 2y + 10 = 0

If x represents the age of father and y represents the present age of the son, then the statement for ‘present age of father is 5 more than 6 times the age of the son’ in terms of mathematical equation is

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6x + y = 5
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x = 6y + 5
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x + 6y = 5
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x - 6 = 5

Equation of a line passing through origin is

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x + y = 1
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x = 2y - 4
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x + y = 0
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y = x - 1

The condition that the equation ax + by + c = 0 represents a linear equation in two variables is

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a ≠ 0, b = 0
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b ≠ 0, a = 0
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a = 0, b = 0
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a ≠ 0, b ≠ 0

The maximum number of points that lie on the graph of a linear equation in two variables is.

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two
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definite
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infinitely many
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three

Straight line passing through the points (-1, 1), (0, 0) and (1, -1) has equation

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y - x
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x + y = 0
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y = 2x
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2 + 3y = 7x

The value of y at x = -1 in the equation 5y = 2 is

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\(\frac{5}{2}\)
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\(\frac{2}{5}\)
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10
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0

Equation of a line which is 5 units distance above the x-axis is

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x = 5
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x + 5 = y
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y - 5
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x - y = 0

x = 3 and y = -2 is a solution of the equation 4px - 3y = 12, then the value of p is

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0
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\(\frac{1}{2}\)
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2
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3

Which of the following is the equation of a line parallel to y-axis?

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y = 0
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x + y = z
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y = x
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x = a

Any point on the line y = 3x is of the form

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(a, 3a)
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(3a, a)
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(a, \(\frac{a}{3}\)
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(\(\frac{a}{3}\), -a)

To which equation does the graph represent?

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3x - 7y = 10
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y - 2x = 3
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8y - 6x = 4
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5x +\(\frac{35}{2}\)y = 25

Any point of the form (a, - a) always lie on the graph of the equation

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x = -a
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y = a
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y = x
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x + y = 0

The graph of the equation 2x + 3y = 6 cuts the x-axis at the point

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(0, 3)
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(3, 0)
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(2, 0)
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0, 2)

Graph of linear equation ax + by + c = 0, a * 0, 6*0 cuts x-axis and y-axis respectively at the points.

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(\(\frac{-c}{a}\), 0), (0, \(\frac{-c}{b}\))
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(0, \(\frac{-c}{b}\), 0), (\(\frac{-c}{a}\), 0)
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(-c, 0) (0, -c)
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(x, 0) (y, 0)

Which of the following ordered pairs is a solution of the equation x - 2y - 6?

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(2, 4)
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(0, 3)
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(-4, 1)
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(4, -1)

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