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IB Mathematics: Applications and Interpretation SL · 12.4: Solving Equations with Technology · 12.4.6

Where two graphs meet Problem set B Answers

Skills

  1. \((−1.19, 2.62)\) and \((2.52, 10.0)\)

  2. \(x = −0.451, 1.00, 3.00\)

    1. (a) \(y = 19\)
    2. (b) \(y = 4\)
    3. (c) \(x = 5.65\)

In context

    1. (a) 10.3 m at \(t = 0.918\) s
    2. (b) \(t = 2.37\) s
    3. (c) 1.04 s
    1. (a) \(x = 29.6\) and \(x = 160\)
    2. (b) 30 and 160
    3. (c) $855.00 when \(x = 95\)
    1. (a) \(t = 1.94\) years
    2. (b) The savings are greater: the laptop's value is €666 and the savings are €1 980
    1. (a) \(n = 19.0\)
    2. (b) 19 candles, €22.97 each

Stretch

    1. (a) A \((−4.54, 8.54)\), B \((1.54, 2.46)\)
    2. (b) AB = 8.60
    1. (a) \(t = 0.240\) s and \(t = 4.25\) s
    2. (b) 4.01 s

jmaths.xyz · AI SL · 12.4.6 Where two graphs meet