Choose the equation below whose axis of symmetry is x = 2.

y = x2 + 4x + 2
y = x2 − 4
y = x2 − 2
y = x2 − 4x + 2

What will be the end result for the taxpayer who filed his federal income tax return using the 1040ez form shown belowa he'll owe $173b he'll receive a refund of $173c he'll owe $3921d he'll receive a refund of $3921