Rewrite equation in vertex form y=x^2+4x+2

Steps:

The general vertex form of a parabola is as follows:

where xv is the x coordinate of the vertex, a is the coefficient determining how wide/narrow the parabola is and whether it is open-up (+) or open-down (-), and b is the bias (vertical shift.

Transforming an expression into the vertex form involves completing the square step:

its the fourth option

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right