The graph of a sinusoidal function has a maximum point at (0,8) and then has a minimum point at (5,2).
Write the formula of the function, where
is entered in radians.
f(x) =

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3