Own answer
Cyclist A:
Cyclist B:
Cyclist A.
hours
Not directly proportional
Directly proportional; constant of proportionality is .
Not directly proportional
Directly proportional; constant of proportionality = .
Directly proportional; constant of proportionality = .
Directly proportional; constant of proportionality = .
Yes.
No.
Not necessarily. If you had covered no distance at all at , it is.
No, the speed increases all the while, so the distance travelled per second changes.
Yes, in similar rectangles the ration of length and width remains the same.
No.
From km per year. Use your graphic calculator to find the first value of a where more than euros difference between both values for occurs.
The call-out charge is not included in the wages.
The call-out charge is now included.
km in minutes converts to km/h.