Trigonometric Functions & Identities

Help! I lost my Identity

100

True or False

tanx=sinx/cosx

True

200

sin²x + cos²x equals this

1

300

1 - cos²x equals this

sin²x

400

This is the Pythagorean Identity.

sin²x+cos²x=1

500

The solution for x for

secx=1/cosx

Any real number

Name that Graph

100

The amplitude for

y=-2sin3x+7

2

200

The vertical shift for

y=4sin4(x - 30°) + 1

up 1

300

The period for

y=4sin4(x - 30°) + 1

90 degrees

400

The maximum value for

y=4sin4(x - 30°) + 1

5

500

The y-intercept for

y=6cosx - 8

-2

It's Just a Phase

100

The phase shift for

y=8cos2(x + 4) - 6

- 4

200

The phase shift that turns the graph of y=sinx into y=cosx.

- 90°

300

The first positive x-intercept for y=tanx

180°

400

The equation of one of the asymptotes for y=tanx

x=90°

500

The range of y=cosx

-1≤y≤1

Trig or Treat

100

16² equals this

256

200

The exact value of cos60°

1/2

300

The province where the Bay of Fundy is

New Brunswick and Nova Scotia

400

The axis of the curve when the max value is 9 and the min value is - 15

- 3

500

The date we return to school in January from the break

January 8

Potpourri

100

The word used for graphs that resemble the sine function

sinusoidal

200

Santa's postal code

H0H 0H0

300

sin²x - cos²x factored

(sinx + cosx)(sinx - cosx)

400

The amplitude when the max value is 6 and the min value is - 10

8

500

What QED stands for

quod erat demonstrandum