help?
For y = x2 − 4x + 3,
Determine if the parabola opens up or down.
State if the vertex will be a maximum or minimum.
Find the vertex.
Find the x-intercepts.
Describe the graph of the equation.
Show all work and use complete sentences

Question

help?
 For y = x2 − 4x + 3,
Determine if the parabola opens up or down.
State if the vertex will be a maximum or minimum.
Find the vertex.
Find the x-intercepts.
Describe the graph of the equation.
Show all work and use complete sentences

anonymous · Answer

the leading coefficient is positive (it is one) so it opens up

anonymous · Answer

that means the second coordinate of the vertex will be a minimum

anonymous · Answer

first coordinate of the vertex of $ax^2+bx+c$ is $-\frac{b}{2a}$ which in your case is
$$-\frac{-4}{2\times 1}=2$$ second coordinate is what you get for y when you replace $x$ by $2$

anonymous · Answer

x intercepts solve $$ x^2 − 4x + 3=0$$ which is easy in this case because it factors

anonymous · Answer

i will leave the complete sentence nonsense up to you i barely speak inglish but here is a nice picture http://www.wolframalpha.com/input/?i=x^2-4x%2B3