Trigonometry Examples

Find Amplitude, Period, and Phase Shift 4tan(x)+9
Step 1
Use the form to find the variables used to find the amplitude, period, phase shift, and vertical shift.
Step 2
Since the graph of the function does not have a maximum or minimum value, there can be no value for the amplitude.
Amplitude: None
Step 3
Find the period using the formula .
Tap for more steps...
Step 3.1
Find the period of .
Tap for more steps...
Step 3.1.1
The period of the function can be calculated using .
Step 3.1.2
Replace with in the formula for period.
Step 3.1.3
The absolute value is the distance between a number and zero. The distance between and is .
Step 3.1.4
Divide by .
Step 3.2
Find the period of .
Tap for more steps...
Step 3.2.1
The period of the function can be calculated using .
Step 3.2.2
Replace with in the formula for period.
Step 3.2.3
The absolute value is the distance between a number and zero. The distance between and is .
Step 3.2.4
Divide by .
Step 3.3
The period of addition/subtraction of trig functions is the maximum of the individual periods.
Step 4
Find the phase shift using the formula .
Tap for more steps...
Step 4.1
The phase shift of the function can be calculated from .
Phase Shift:
Step 4.2
Replace the values of and in the equation for phase shift.
Phase Shift:
Step 4.3
Divide by .
Phase Shift:
Phase Shift:
Step 5
List the properties of the trigonometric function.
Amplitude: None
Period:
Phase Shift: None
Vertical Shift:
Step 6