2.6 The quadratic function

2.6 The quadratic function Quiz

IB Maths: Analysis and Approaches HL: Quiz

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5 questions, one answer each

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  1. 1. What is the vertex of y=4(x−5)2+2y = 4(x - 5)^2 + 2?

    • A. (−5,2)(-5, 2)
    • B. (5,2)(5, 2)
    • C. (5,−2)(5, -2)
    • D. (4,2)(4, 2)

  2. 2. What is the axis of symmetry of y=−x2+6x−1y = -x^2 + 6x - 1?

    • A. x=−3x = -3
    • B. x=6x = 6
    • C. x=3x = 3
    • D. x=−6x = -6

  3. 3. Which is x2−10x+21x^2 - 10x + 21 in the form (x−h)2+k(x - h)^2 + k?

    • A. (x−5)2−4(x - 5)^2 - 4
    • B. (x−5)2+21(x - 5)^2 + 21
    • C. (x+5)2−4(x + 5)^2 - 4
    • D. (x−10)2−79(x - 10)^2 - 79

  4. 4. Which quadratic has xx-intercepts (−2,0)(-2, 0) and (3,0)(3, 0) and yy-intercept (0,12)(0, 12)?

    • A. 2(x+2)(x−3)2(x + 2)(x - 3)
    • B. −2(x−2)(x+3)-2(x - 2)(x + 3)
    • C. −2(x+2)(x−3)-2(x + 2)(x - 3)
    • D. 12(x+2)(x−3)12(x + 2)(x - 3)

  5. 5. f(x)=3(x+1)2−5f(x) = 3(x + 1)^2 - 5. What is the yy-intercept?

    • A. (0,−5)(0, -5)
    • B. (0,−2)(0, -2)
    • C. (0,8)(0, 8)
    • D. (0,−1)(0, -1)

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