The graphs show the percentage of high school seniors who had ever used alcohol or marijuana. The data can be described by the following mathematical models, where n is the number of years after 1990, A is the percentage of seniors using alcohol, and M is the percentage of seniors using marijuana. A= -0.9n+56 M= -0.5n+ 31 Percentage Alcohol and Marijuana Use by High School Seniors 80- 705 60- 50- 40- 30- 20- 10- 0- 1990 1995 2000 2005 2010 2015 2019 Year a. Use the appropriate line graph to estimate the percentage of seniors who had ever used marijuana in 2019. Alcohol Marijuana
The graphs show the percentage of high school seniors who had ever used alcohol or marijuana. The data can be described by the following mathematical models, where n is the number of years after 1990, A is the percentage of seniors using alcohol, and M is the percentage of seniors using marijuana. A= -0.9n+56 M= -0.5n+ 31 Percentage Alcohol and Marijuana Use by High School Seniors 80- 705 60- 50- 40- 30- 20- 10- 0- 1990 1995 2000 2005 2010 2015 2019 Year a. Use the appropriate line graph to estimate the percentage of seniors who had ever used marijuana in 2019. Alcohol Marijuana
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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