1.
This graph represents the boiling point of water, \( b \) degrees Celsius, as a function of altitude, \( a \) metres. Identify the independent variable.
2.
Which equation does not represent a linear relation?
3.
The total cost, \( C \), in dollars, of holding a birthday party at a roller-skating rink is represented by the function \( C(n)=35+15n \), where \( n \) is the number of people attending the party. In this function, what does 35 represent?
4.
The altitude of a plane, \( a \) metres, is related to the time, \( t \) minutes, that has elapsed since it started its ascent. Determine the rate of change of this linear relation.
5.
Each graph below shows distance, \( d \) metres, as a function of time, \( t \) hours. Which graph has a rate of change of 4 m/h and a vertical intercept of 3 m?
1 out of 1
