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

3|x − 8| =18 - 15 = 3
|x − 8| = 3/3 = 1
x − 8 =
`\pm1`
x =
`\pm1` + 8
x = 1 + 8 or x = -1 + 8
x = 9 or x = 7
i.e. minimum temperature is 7 while the maximum temperature is 9