The graph shows an idealized description of the temperature in F for approximately the last 150 thousand years of a location at the same latitude Complete parts a c a ring the nignest and lowest temperatures recordea The highest temperature is 60 F The lowest temperature is 20 F b Use these two numbers to find the amplitude The amplitude is 20 c Find the period of the function The period is yr 4 C Average Annual Temperature Idealized 120 000 90 000 60 000 Years ago 70 60 50 40 F 30 20 30 000 Q 10