this scatterplot shows the performance of an electric motor using the variables speed of rotation and voltage. select the answer choice that accurately describes the data's form, direction, and strength in the scatterplot. form: the data points are arranged in a curved line. direction: the voltage increases as the speed of rotation increases. strength: the data points are far apart from each other. form: the data points appear to be in a straight line. direction: the voltage increases as the speed of rotation increases. strength: the data points are closely concentrated. form: the data points appear to be in a straight line. direction: the speed of rotation increases with an increase in voltage. strength: the data points are closely concentrated. form: the data points are arranged in a curved line. direction: the speed of rotation increases with an increase in voltage. strength: the data points are far apart from each other.