Graphing Trigonometric Functions on TI-84

This video tutorial guides viewers through graphing the cosecant, secant, and cotangent functions on a TI-84 calculator in both degree and radian modes. It explains the reciprocal relationships between these functions and their corresponding sine, cosine, and tangent functions. The tutorial provides step-by-step instructions for setting up the calculator, adjusting the window and table settings, and interpreting the graphs and tables of values. It also highlights potential issues with undefined values and how to address them.

What is the reciprocal of the cosine function?

• Sine

• Secant

• Tangent

• Cosecant

How do you set the TI-84 calculator to degree mode?

• Press the 'Window' key and select 'Degree'

• Press the 'Mode' key and select 'Degree'

• Press the 'Mode' key and select 'Radian'

• Press the 'Graph' key and select 'Degree'

How do you graph the secant function on the TI-84?

• Graph 1/sine(x)

• Graph 1/cosine(x)

• Graph 1/tangent(x)

• Graph sine(x)

What happens to the secant function at angles where cosine is zero?

• It is undefined

• It is one

• It is two

• It is zero

What is the reciprocal of the sine function?

• Cotangent

• Tangent

• Cosecant

• Secant

What is the relationship between the graphs of sine and cosecant functions?

• They are identical

• They are unrelated

• They are inverses

• They are reciprocals

Which function is undefined where the tangent function is zero?

• Cotangent

• Secant

• Sine

• Cosecant

What is the reciprocal of the tangent function?

• Secant

• Sine

• Cosecant

• Cotangent

What is a disadvantage of using radian mode on the TI-84 calculator?

• Angles are expressed as decimal approximations

• Angles are not displayed

• Angles are expressed as fractions

• Angles are expressed in degrees

How do you adjust the window settings for graphing in radian mode?

• Set X Min to -180 and X Max to 180

• Set X Min to -360 and X Max to 360

• Set X Min to -π and X Max to π

• Set X Min to -2π and X Max to 2π