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trig

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y = cos(4x/3 minus 1)

amplitude?

Period?

Two x - intercepts?

y-intercept?

Domain?

Range?

Shift along x?

Shift along y?

Kind of reflection?

  • trig -

    amplitude=1 since this is the maximum value of the function.
    Period is value of x when:
    4x/3 minus 1 = 2pi.
    x intercepts are when:
    4x/3 minus 1 = pi/2
    4x/3 minus 1 = pi+(pi/2)
    y intercept is when
    4x/3 minus 1 = 0
    Domain is minus infinity to plus infinity.
    Range is -1 to +1

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