";s:4:"text";s:3426:"Words in science are often used in different ways from ordinary English. Look at its graph. View and Download Texas Instruments TI-84 PLUS - Graphing Calculator manual book online. 6.3 GRAPHS OF THE SINE AND COSINE FUNCTIONS Periodic Functions Graph of the Sine Function ... so we use the absolute value of the coefficient) If you have a negative sign in front of the absolute value, the graph will be reflected, or flipped, over the x-axis. Absolute value of cos x is less than or equal to x. Completely different meanings even occur in different branches of physiology, e.g. y a sin x. b sin x sin x y a sin bx 2 y a sin x. b > 1, 0