Wat is de vertexvorm van y = 2x ^ 2 + 3x-8?

Antwoord:

Vertex-formulier is # y = 2 (x + 3/4) ^ 2 - 73/8 #

Uitleg:

# y = 2x ^ 2 + 3x -8 of y = 2 (x ^ 2 + 3 / 2x) -8 # of

# y = 2 (x ^ 2 + 3 / 2x + (3/4) ^ 2) - 2 * 9 / 16-8 # of

# y = 2 (x + 3/4) ^ 2 - 9 / 8-8 # of

# y = 2 (x + 3/4) ^ 2 - 73/8 #

Vertex is # (-3/4, -9 1/8)#

Vertex-formulier is # y = 2 (x + 3/4) ^ 2 - 73/8 # Ans