Question

convert y = x^2 -2x -3 into vertex form

Answer 1

Do you know how to complete the square?

Answer 2

not really

Answer 3

Ok, well first you take the coefficient of x, divide it by 2, then square the result. so,

(-2/2)^2
-1^2
1

you add and subtract that into the equation

y=x^2-2x+1-1-3

Factor the first part which is now a perfect square

y=(x-1)^2-1-3

simplify

y=(x-1)^2-4

understand how i got that?

Answer 4

yea