Relations and functions: 1) select true or false for each statement. true or false, a straight line on a coordinate plane always represents a function. true or false, the equation y=2x+1 represents a function.

You are studying for your final exam of the semester. up to this point, you received 3 exam scores of 67%, 68%, and 78%. to receive a grade of c in the class, you must have an average exam score between 70% and 79% for all 4 exams including the final.