Write the quadratic function in vertex form.

y = x2 - 14x + 53

A. y = (x - 7) 2 - 4

B. y = (x + 7) 2 - 4

C. y = (x - 7) 2 + 4

D. y = (x + 7) 2 + 4

Complete the square

isolate x terms

y = (x^2-14x) + 53

take 1/2 of - 14 and square it ((-7) ^2=49

add plus and minus of that inside the parntehasees

y = (x^2-14x+49-49) + 53

factor perfect suqrae

y = ((x-7) ^2-49) + 53

get rid of parnthasees

y = (x-7) ^2-49+53

y = (x-7) ^2+4

C isi answer