Which statement correctly describes the differences between positive and negative acceleration?

Question

Positive acceleration describes a change in speed; negative acceleration describes no change in speed.
Positive acceleration describes no change in speed; negative acceleration describes a change in speed.
Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.
Positive acceleration describes a decrease in speed; negative acceleration describes an increase in speed.

Answer 1

Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.