mam 1314 Lao moame 2 page 3 4. 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 L(x) = 20 0.4x. a. State the coordinates of the xintercept. b. State the coordinates of the y-intercept. c. State the slope. d. Graph the'linear function for x 2 0. (Label the axes completely\")