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Perplex
IB Math AISL
/
Modelling
/
Problem Bank
IB Math AISL
/
Modelling
/
Problem Bank

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I'm Plex, here to help with problems on this worksheet!
[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]
    h(3)= dollars
  2. Solve ​h(x)=15.

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

    [2]
[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]
    h(3)= dollars
  2. Solve ​h(x)=15.

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

    [2]