Mathematics for IGCSE & O level - Graphs Of Functions (Section 3 - No. 8)

What is the equation of the axis of symmetry for the parabola represented by y = 2x² - 4x + 1?

x = -1

x = 1

y = -1

y = 1

The axis of symmetry can be found using the formula x = -b/2a, where a=2 and b=-4. Therefore x = -(-4)/(2*2) = 1