HS.F-IF.7 Graph functions expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated cases.

e. Graph exponential and logarithmic functions, showing intercepts and end behavior, and trigonometric functions, showing period, midline, and amplitude.

HS.F-TF.2 Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.

HS.F-TF.3 (+) Use special triangles to determine geometrically the values of sine, cosine, tangent for ð/3, ð/4 and ð/6, and use the unit circle to express

the values of sine, cosines, and tangent for x, ð+x, and 2ð–x in terms of their values for x, where x is any real number.

HS.F-TF.4 (+) Use the unit circle to explain symmetry (odd and even) and periodicity of trigonometric functions.

HS.F-TF.5 Choose trigonometric functions to model periodic phenomena with specified amplitude, frequency, and midline.

HS.F-TF.6 (+) Understand that restricting a trigonometric function to a domain on which it is always increasing or always decreasing allows its inverse to be constructed.