Which of the following is not true of exercise machines?
a.
most exercise machines are expensive to purchase individually.
b.
most exercise machines require spotters for safe operation.
c.
most exercise machines require less skill to use than free weights.
d.
most exercise machines can only be used for a limited number of exercises.

The correct option is C. The statement written in optic C is false. Most exercise machine requires expert skill to use. One will either have to learn how to use the machine or employ the service of fitness instructors who have expert ideas of how the machine works. A fitness instructor knows how particular exercise machine operate and can put the users through during exercise.

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.