Let us learn about "vertex formula".
Introduction to write quadratic function in vertex form
General form of a quadratic equation is y= ax2+ bx +c where a,b and c are real numbers and a 0.The graph of the quadratic equation is a parabola (either up or down). Let us assume that this parabola has its vertex at (h,k), then we can write the quadratic equation in vertex form as y= a(x-h)2+k.
There are 2 methods to write quadratic equation in vertex form.
Click on the link to learn about "quadratic equation formula"
1. Using completing the square method
2. Using vertex formula
VERTEX : For any two edges that meet at an end – point, there is a third edge, that also meets them at that end – point. This point of intersection of three edges of a cuboid is called a vertex of the cuboid.
The vertices of the cuboid in the figure are A, B, C, D, E, F, G, H.
Clearly, a cuboid has 8 vertices.
Thus, we see that the twelve edges of a cuboid can be grouped into three groups such that all edges in one group are equal in length. This means that twelve edges of a cuboid can have only three distinct lengths. Usually, the longest of these is called the length of the cuboid and out of the remaining two, one is called the breadth or width and the other height of the cuboid.
BASE AND LATERAL FACES : Any face of a cuboid may be called the base of the cuboid. In that case, the four faces which meet the base are called the lateral faces of the cuboid.
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