What is the vertex of y=x2 – 2x + 3?
O (-1,3)
O (1, 2)
O (3, 1)
O (2, -1)

vertex = (1, 2 )

Step-by-step explanation:

Given a quadratic in standard form

y = ax² + bx + c ( a ≠  0 )

Then the x- coordinate of the vertex is

x = -

y = x² - 2x + 3 ← is in standard form

with a = 1, b = - 2 , then

x = - = 1

Substitute x = 1 into the equation for corresponding value of y

y = 1² - 2(1) + 3 = 1 - 2 + 3 = 2

vertex = (1, 2 )

a² + b²= c²

24² + 7² = c²

c= 25

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.