# What is the formula for vertex of a parabola?

## What is the formula for vertex of a parabola?

y=ax2+bx+c . In this equation, the vertex of the parabola is the point (h,k) . You can see how this relates to the standard equation by multiplying it out: y=a(x−h)(x−h)+ky=ax2−2ahx+ah2+k .

### How to find the lowest point of a parabola?

In the graph, the highest or lowest point of a parabola is the vertex. The vertex of the graph of y=x2 is (0,0). If a>0 in f(x)=ax2+bx+c, the parabola opens upward. In this case the vertex is the minimum, or lowest point, of the parabola.

How do you find coordinates of a vertex?

Calculate -b / 2a. This is the x-coordinate of the vertex. To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y. This is the y-coordinate of the vertex.

What is a in a parabola equation?

For graphing, the leading coefficient “a” indicates how “fat” or how “skinny” the parabola will be. This point, where the parabola changes direction, is called the “vertex”. Advertisement. If the quadratic is written in the form y = a(x – h)2 + k, then the vertex is the point (h, k).

## What is the minimum of a parabola?

Vertical parabolas give an important piece of information: When the parabola opens up, the vertex is the lowest point on the graph — called the minimum, or min. When the parabola opens down, the vertex is the highest point on the graph — called the maximum, or max.

### What are the coordinates of the vertex of the graph is it a maximum or minimum?

The vertex is (0, 0). The function has a maximum value of 0, which is the y-coordinate of the vertex.

How do you find the vertex of a parabola given two points?

To find the vertex of a parabola, you first need to find x (or y, if your parabola is sideways) through the formula for the axis of symmetry. Then, you’ll use that value to solve for y (or x if your parabola opens to the side) by using the quadratic equation. Those two coordinates are your parabola’s vertex.