Answer:
E.
Step-by-step explanation:
not sure sorry...anyone help this
Answer:
2π/7
Step-by-step explanation:
A cosine wave is:
y = A cos(2π/T x + B) + C
where A is the amplitude,
T is the period,
B is the horizontal shift,
and C is the vertical shift.
In this case:
7 = 2π/T
T = 2π/7
The slope of the given line is -4/3. the slope of any perpendicular line is the negative reciprocals, or 3/4
A. you would put in 7 for X and 3 for Y.
3 + 7 = 10
2(10) = 20
