Question

The axis of symmetry and the cusp of the quadratic function graph y = 2x²-4x + 9 is

Answer 1

y = 2x ^ - 4x + 9

a = 2

b = -4

c = 9

Symmetry axis

x = -b / 2a

x = 4/4

x = 1

y = 2 (1) ^ - 4 (1) + 9

y = 2 - 4 + 9

y = 7

High point

P (1, 7)