How do you determine the vertex for a equation?

A quadratic equation is written as   in its standard form. Use the formula 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  

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 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)!

step-by-step explanation:

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.