Page 40 - Spotlight A+ Form 4 & 5 Mathematics KSSM

Question Bank

Chapter 1 Quadratic Functions and Equations in One Variable

1. Which of the following characteristics of quadratic function is not correct for f(x) = x + 9?
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A The graph f(x) = x + 9 has a minimum point at (0, 9).
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B f is a many to one function.
C The axis of symmetry for the graph f(x) = x + 9 is x = 0.
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D The graph f(x) = x + 9 cuts the x-axis at x = ±3.
2. Which of the following graphs is correct about the value of a on the graph of the quadratic function y = ax ?
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A y C y
y = 4x 2
y = x 2
y = x 2
y = 3x 2

x
O
x
O
B y D y
y = x 2 y = x 2

x x
O O
y = –5x 2
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–
y = – x 2
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3. The diagram below shows a right-angled triangle.

(x + 10) cm
(x + 5) cm

25 cm
Based on the given information, find the quadratic equation that can be formed.
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A x + 15x – 250 = 0 C 2x + 15x – 500 = 0
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B x + 30x – 500 = 0 D 2x + 15x – 750 = 0
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4. Which of the following is not a quadratic equation?
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A p + 8 = 3p C x + 3 = 4
x
B k = 10 – 3k 2 D 13 + 9w – 3w = 0
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5. Given 4 is a root of the quadratic equation ax + 14x – 8 = 0, determine the value of a.
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A –4 C 3
B –3 D 4
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