court3138
14.12.2019 •
Mathematics
What are the period and phase shift for f(x) = −4 tan(x − π)?
a) period: π; phase shift: x = pi over two
b) period: π; phase shift: x = π
c) period: 2π; phase shift: x = pi over two
d) period: 2π; phase shift: x = π
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Ответ:
The equation for finding timeperiod and phase shift is: a tan(bx-c) +d
where, a = amplitude
Time period = π/b
phase shift = c/b
therefore, comparing the given equation we get, f(x) = −4 tan(x − π) we get,
thus, answer is time period = π
phase shift = π
Ответ:
-5x = 78 + 25
-5x = 103
x = 103/-5
x = -20.6
Compare her solution with that above.