# 28 The following graph approximates the incidence of breast cancer y, per 100,000 women, as a function of age , where a represents ages 25 to 102. 1(x) A Incidence of breast cancer per 100,000 women 500 400 300 200 100 0 10 20 30 40 50 60 70 80 90 100 110 120 Age (Source: Based on data from the National Cancer Institute.) Please estimate your answers from the graph above. a) What is the incidence of breast cancer in 40-yr-old women? There are about incidence per 100,000 women. b) For what ages is the incidence of breast cancer about 400 per 100,000 women? -yr-old and In X women, the number of incidence is about 400 per 100,000 women. c) Examine the graph and try to determine the age at which largest incidence occurs? -yr-old women, the largest number of incidence occurs. In