CPM Homework Banner

Home > INT2 > Chapter 8 > Lesson 8.4.3 > Problem 8-108

8-108.
  1. Does each expression below have a maximum or a minimum possible value? What real-number value of x will yield the maximum or minimum value? Where do you see these values in each expression? Homework Help ✎

    1. (x + 4)2

    2. –(x + 27)2

    3. –(x – 40)2

    4. (x + 32)2

Each of these expressions has a squared quantity. What is the lowest number you can get when squaring?

Minimum:
x = −4

If you try various values for x you will almost always get a negative number. Therefore 0 is the highest number you can obtain.
Maximum: x = −27