Emma throws an object upward from a hill that is 64 feet high. the object has an initial velocity of 48 feet per second. the function y = -16x2 + 48x + 64 represents the height of the object, y, in terms of the time elapsed after the object is thrown, x. which statements about this function are true? the function is a linear function. the function is a nonlinear function. the function has a constant rate of change. the function does not have a constant rate of change. the function is a decreasing function.

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.