Question

the minimum and maximum temperature for a day in Cupcake Town can be modeled by the equation below: 3|x − 8| + 15 = 18 What are the minimum and maximum temperatures for this day?

Answer 1

subtract 15 from both sides: 3|x-8|+15=18-15

simplify: 3|x-8=3

divide both sides by 3: 3|x-8/3=3/3

simplify: |x-8|=1

x-8=-1 or x-8=1

x-8=-1 : x=7

x-8+1 : x=9

x=7 or x=9