SOLUTION: Determine the amplitude and the period of the following function then graph it: y=-cos(1/2)x Graphs really confuse me.

SOLUTION: Determine the amplitude and the period of the following function then graph it: y=-cos(1/2)x Graphs really confuse me.

Algebra.Com

Question 864150: Determine the amplitude and the period of the following function then graph it:
y=-cos(1/2)x
Graphs really confuse me.

Answer by fcabanski(1391) (Show Source): You can put this solution on YOUR website!
For a function a*cos(bx) the amplitude is |a| and the period is 2*pi/b

For this function the amplitude is |1| and the period is 2*pi/(1/2)= 4pi.

RELATED QUESTIONS
Determine the amplitude, period and displacement of the function. Then sketch the graph... (answered by stanbon)

determine the amplitude and period and phase shift of each function. Then graph one... (answered by Alan3354)

determine the amplitude and period of each function graph each function from -2pi to 2pi... (answered by stanbon)

What is the amplitude, period and phase shift of the following function: y=1+COS (3x... (answered by lwsshak3)

Determine the amplitude, period, and phase shift of the function, y=1/2... (answered by user_dude2008)

TRIGONOMETRY A. Determine the amplitude and period of the following function. 1. y =... (answered by Alan3354)

Determine the amplitude period and phase shift of y = -2 cos(pi x... (answered by lwsshak3)

Determine the amplitude, period, and phase shift of y = -2 cos (pi x... (answered by Alan3354)

Find the amplitude, period, and phase of the function. Y=cos(pi/2 -... (answered by stanbon)