Type of Function: Exponential, because it gradually increases upwards

Domain of this function: 0<X<7 (equal sign)

Range of this Function: 0<y<10 (equal sign added)

The future of the graph will start to decline because ITunes grew their market share that year, taking away business from the others.

It would not effect range for years because 10 would still be the maximum. However the domain would change because time would continue to move on.

There would be a problem trying to extend the equation however because it is not a continuous growth so it would no longer be exponential.

Making predictions based on trends is very difficult because no matter how hard you try, you cannot predict the future. The human error alone in this graph changes it drastically.

Domain of this function: 0<X<7 (equal sign)

Range of this Function: 0<y<10 (equal sign added)

The future of the graph will start to decline because ITunes grew their market share that year, taking away business from the others.

It would not effect range for years because 10 would still be the maximum. However the domain would change because time would continue to move on.

There would be a problem trying to extend the equation however because it is not a continuous growth so it would no longer be exponential.

Making predictions based on trends is very difficult because no matter how hard you try, you cannot predict the future. The human error alone in this graph changes it drastically.