Algebra-2

1. Recall the general form of an absolute - value function:
  - The general form of an absolute - value function is , where is the vertex of the V - shaped graph.
 -The vertex is at (0,0), so there is no horizontal or vertical shift.
Then the equation of the function has the form .

2. Find the value of :
  - We can use a point on the graph to find the value of .
From the graph, when , .
  - Substitute and

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