Michigan State University - Diagnostic Exam

 [next]  [prev]  [bottom]  [up] 

2.17

  •   Which equation represents the same line as y = 2(x - 5) + 6.



    a) y + 2x + 4 = 0 b) y - 2x = 4
      
    c) y = 2(x - 6) + 8 d) y = 2(x - 3) + 4
      
    e) 3y + 6x = 2(x - 3)

Solution:
Notice that y = 2(x - 5) + 6  ⇒  y = 2x - 4 = 2x - 12 + 8 = 2(x - 6) + 8.

Diagnostic:

See 1.6: Simplifying Expressions .

 [next]  [prev]  [top]  [up] 

July 15, 2008