Question

How do you solve graphing quadratic functions by factoring `x^2 + 6x + 8`?

Answer 1

This factors to `(x+2)(x+4)`

The y intercept is (0,8)

It crosses the x axis at (-2,0) and (-4,0)

It is a `uu` shaped parabola and it has a line of symmetry at

`[-b]/[2a]=-6/2=-3`

The minimum is (-3,-1)