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  • Perplex
    IB Math AAHL
    /
    Cartesian plane & lines
    /

    Problem Bank

    [Maximum mark: 4]

    The function ​h(x)=2x+5​ models the cost (in dollars) of renting a scooter for ​x​ hours.

    1. Write down the cost of renting the scooter for ​3​ hours.

      [1]

      To earn a crown, get your answer ready before you reveal the options!

    2. Solve ​h(x)=15.

      [1]
    3. State the gradient of the function and explain what it represents in this context.

      [2]

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