In a Study Using 50 Foreign-Language Vocabulary Words, the Learning

Multiple Choice

In a study using 50 foreign-language vocabulary words, the learning rate L (in words per minute) was found to depend on the number of words already learned x, according to the equation . Use the intercepts to determine a window, and then use a graphing utility to graph the equation for Based on the graph, is the learning rate increasing or decreasing? ​

A) increasing
B) decreasing