What is the axis of symmetry for the graph $y = x^2+ 4x + 3$ ?

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Answer 1 · 2016-03-30T14:21:56

$x=-2$

From standard form of $y=ax^2+bx+c$

The axis of symmetry is $(-1/2)xxb/a$

In your case $a=1$ so we are left with

$(-1/2)xx4=-2$

What is the axis of symmetry for the graph y = x^2+ 4x + 3y = x^2+ 4x + 3?