Question

y=x^2-2x-3
Would the vertex and intercept form be:
y+4=(x-1)^2
y=(x+3)(x-1) ?

Answer 1

y+4=(x-1)^2 is correct

Answer 2

but y=(x+3)(x-1) is incorrect

Answer 3

notice how the +3 and the -1 in y=(x+3)(x-1) add to +3 + (-1) = +2

but we want them to add to -2 (for the -2x)

Answer 4

So, (x-3)(x+1)?

Answer 5

much better

Answer 6

^.^ Thank yhu

Answer 7

np