ANSWER

EXPLANATION
The frequency of a wave function refers to the number of times the graph repeats its cycle within the interval [0,2π]
We can observe explicitly from the graph that the frequency is half.
The period of the given function is 4π


Hence the frequency is half.
Answer:
true
Step-by-step explanation:
.8 is closer to 1 than .78 is
You should go up 3.5 on the Y-Axis and then go up .5 and over 1.
Answer:
D
Step-by-step explanation:
a clockwise rotation 90 degrees results in a transformation like this:
⇒
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Point-slope form is
, where
is the slope and
is a point on the line.
Substitute in the values. 
Simplify the negative subtraction to addition. 