CK12 - Trigonometry

Month Averagedaylighthours

Jan 5.65

Feb 7.77

March 10.4

April 13.37

May 16.87

June 18.72

July 19.18

August 17.12

September 14.27

October 11.43

November 8.53

December 6.13

Answers

a. Not a function b. Is a function c. Not a function

a.y= 95x

b. The situationis directvariation.

c. 285 miles

a. C(x) = 2x+ 100

b. R(x) = 10x

c. P(x) = 8x- 100

d. You mustmakeand sell 13 framesto makea profit.

a. This is a quadraticfunction.

b. The domainis the set of all real numbers.The rangeis the set of all real numbersgreaterthan or equal
to 3.25.

c. Vertex:(.5, -3.25);x-intercepts:-1.3, 2.3.