Math algebra mcqs with answers pdf | Basic Algebra mcqs | vector algebra mcqs with answers pdf | Maths mcqs with Answers PDF | Matrix algebra mcqs | linear algebra mcqs with answers pdf

 Page 9

81. Solve the system of equations:
2x + 3y = 8
4x - 5y = -7
a) x = 2, y = 1
b) x = 1, y = 2
c) x = 3, y = 2
d) x = 2, y = -1
Answer: a) x = 2, y = 1

82. What is the slope of the line passing through the points (3, 4) and (5, 2)?
a) -1
b) 1/2
c) 2
d) -2
Answer: d) -2

83. Expand the expression: (x - 2)^2.
a) x^2 + 2
b) x^2 - 4x + 4
c) x^2 - 4
d) x^2 - 2x + 4
Answer: b) x^2 - 4x + 4

84. Solve for x: 3(x - 4) = 15 - 2x.
a) x = 5
b) x = -3
c) x = 4
d) x = 6
Answer: a) x = 5

85. Simplify: (2x^2)(3x^3)(4x^4).
a) 24x^9
b) 24x^10
c) 24x^11
d) 24x^8
Answer: b) 24x^10

86. Solve the equation: |2x - 5| = 9.
a) x = 2
b) x = 7/2
c) x = -2
d) x = -7/2
Answer: b) x = 7/2

87. Factor the expression: x^2 + 5x + 6.
a) (x + 2)(x + 3)
b) (x - 2)(x - 3)
c) (x + 2)(x - 3)
d) (x - 2)(x + 3)
Answer: a) (x + 2)(x + 3)

88. Solve the inequality: 3x + 4 > 10.
a) x > 2
b) x > 3
c) x < 2
d) x < 3
Answer: a) x > 2

89. Find the vertex of the parabola defined by the equation y = x^2 + 4x + 3.
a) (-2, -1)
b) (-2, 1)
c) (2, -1)
d) (2, 1)
Answer: a) (-2, -1)

90. Solve the system of equations:
2x + y = 7
3x - 4y = -2
a) x = 3, y = 5
b) x = 5, y = 3
c) x = -3, y = 5
d) x = -5, y = 3
Answer: c) x = -3, y = 5