raishagibson
13.01.2020 •
Mathematics
Solve the system of linear equations by substitution.
braceleftze 3x − 2y = 9
y = 2x − 7
the solution of the system is (, ).
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Ответ:
Basic form of a sinusoidal function: F(t) = A Cos(bt - c) + d
|A| = amplitude, distance from max/min to center of the graph.
b = frequency
2π/b = period
c = phase shift, shifts graph left/right
d = vertical shift
Given information:
max = 20 ; min = 0 so the amplitude is 20/2 , A = 10
Center of the graph is then shifted up 10 units. d = 10
period is 4 = 2π/b
b = π/2
* insert the values..
F(t) = 10 Cos(πt/2) + 10
should look something like that. Maybe has a phase shift, c value or sine instead of cosine would still be a valid solution.