. Choose the true statement. A quadratic relation has equal first differences. A quadratic relation is represented by a parabola. For a quadratic relation, the second differences are increasing. Every quadratic relation can be represented by an equation of the form y = ax А. В. С. D.

cab Module 2 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) = 200.4x. a) State the coordinates of the x-intercept. b) State the coordinates of the y-intercept. c) State the slope. d) Graph the linear function for x ≥ 0. (Label the axes) ▬▬▬|||| ners wou problem. Write the ins ation in a e) Is the learning rate increasing or decreasing? Explain why your answer makes sense in the context of the problem. Use a complete sentence with proper grammar and correct spelling.