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Home > A2C > Chapter 10 > Lesson 10.1.2 > Problem 10-47

10-47.
  1. Rearrange each equation into a more useful form for graphing. State the locator point and draw the graph. Homework Help ✎

    1. y = 2x2 + 8x + 5

    2. x2 + y2 − 2x − 6y = 0

Factor and complete the square.

y = 2(x2 + 4x) + 5

y = 2(x2 + 4x + 4) − 2(4) + 5

y = 2(x + 2)2 − 3

Locator point: (−2, −3)

Complete the square for both x and y.

(x − 1)2 + (y − 3)2 = 10

Locator point: (1, 3)