SOLUTION: Graph the solution to the following inequalities on the number line. (x-2)(x+7) greater than or equal to _> 0

Algebra ->  Number-Line -> SOLUTION: Graph the solution to the following inequalities on the number line. (x-2)(x+7) greater than or equal to _> 0      Log On


   



Question 762681: Graph the solution to the following inequalities on the number line.
(x-2)(x+7) greater than or equal to _> 0

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Graph the solution to the following inequalities on the number line.
(x-2)(x+7) greater than or equal to _> 0
------
Solve the Equality:
x = 2 or x = -7
-----
Draw a number line and plot x = -7 and x = 2.
---
Test a value in each of the number line intervals:
(x-2)(x+7) > 0
---
Let x = -10 you get -*- > 0 ::: true
Let x = 0 you get -*+ > 0 ::: false
Let x = 10 you get +*+ > 0 ::: true
==================
Solution:: (-100,-7]U[2,+oo)
==================================
Cheers,
Stan H.
==============