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Home > A2C > Chapter 11 > Lesson 11.3.1 > Problem 11-129

11-129.
  1. Complete the square to change the following equations to graphing form. Then sketch the graph of each equation. Homework Help ✎

    1. f(x) = x2 + 4x + 6

    2. x2 + 6x + y2 − 8y = 0

How many ones do you need to make a perfect square? How many do you have?

f(x) = (x + 2)2 + 2

See part (a).

(x + 3)2 + (y − 4)2 = 25
Remember to sketch the equation.