Write a quadratic formula vertex ( 2,3 ) point ( 1,-7 )

The vertex formula:

(h, k) - vertex

We have vertex (2, 3). Therefore:

We know that the parabola passes (1, -7).

Put the coordinates of this point into the function equation

x = 1, f(x) = -7

Therefore we have:

Use

d? maybe

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.