A cosine function has a period of 3, a maximum value of 20, and a minimum value of 0. The function is a reflection of its parent function over the x-axis.
Which function could be the function described?
A.f(x)=−10cos(3x)+10
B.f(x)=−10cos(2π3x)+10
C.f(x)=10cos(3x)−10
D.f(x)=10cos(2π3x)+10
...?
+36916 -10 cos ( 2 pi x / 3) + 10 I believe it is your second choice, though there is a typo.
