FIND VERTEX OF ABSOLUTE VALUE FUNCTION WORKSHEET

Find the vertex of absolute value function given below and find the direction of opening.

Problem 1 :

y = 1/4│x + 4│- 9

Problem 2 :

y = -2│x + 1│+ 6

Problem 3 :

y = 4│x - 3│

Problem 4 :

y = -1/2│x│+ 3

Problem 5 :

y = -5│x - 8│- 5

Answer Key

1) Vertex (h, k) = (-4, -9), a = 1/4, it will open up.

2) Vertex (h, k) = (-1, 6), a = -2, it opens down.

3) Vertex (h, k) = (3, 0), a = 4, It will open up.

4) Vertex (h, k) = (0, 3), a = -1/2, it will open down.

5) Vertex (h, k) = (8, -5), a = -5, it will open down.