Answer:
A quadratic equation is written as [tex]ax^2+bx+c[/tex] in its standard form. Use the formula [tex]-\frac{b}{2a}[/tex] for the x coordinate and then plug it in to find the y.
Step-by-step explanation:
1) For example, let's suppose our problem is to find out vertex (x,y) of the quadratic equation [tex]x^2+2x-3[/tex]
2) Assess your a, b and c values. In this example, a=1, b=2 and c=-3
3) Plug in your values into the formula. For this example, you'll get [tex]-\frac{2}{2*1}[/tex] which simplifies to -1
4) plug -1 for x in the equation to find the y-value of the vertex and you're good
5) Your final answer is (-1 ,-4)!
