Question

whats the differ from standard and vertex form?

Answer 1

i know that the vertex is the maximum or the minumum, but when im doing wuestions like Find the maximum or minimum point of y = -x2 + 12x - 5. what do i do

Answer 2

Why these forms? Standard form (aka general form) is in a form that's great for working with. For example, if I wanted to add two quadratics, I would prefer them in general form so that I could add the coefficients. If it isn't in general form, then I would convert to general form.

Vertex form is great for finding the vertex of a parabola, and determining its nature. The vertex, in this form, is (u, v). This tells us also that the axis of symmetry is x = u. If a is positive, then the vertex is a minimum. If a is negative, then it's a maximum

Answer 3

so what do i do? im confused

Answer 4

it depends

Answer 5

on if i want to use standard or vertex form?

Answer 6

they are equivalent

Answer 7

ok so how do i do it in standard form Find the maximum or minimum point of y = -x2 + 12x - 5. what do i do

Answer 8

The standard form of a parabola's equation is generally expressed:

y = ax 2 + bx + c The role of 'a'
If a> 0, the parabola opens upwards
if a< 0, it opens downwards.


the vertex form of a parabola's equation is generally expressed as: y = a(x-h)2+k

Answer 9

thinking..

Answer 10

so what would be a? 1?

Answer 11

y = -x2 + 12x - 5.
y=a(x-h)2+k

so...im confused

Answer 12

sorry its x^2 btw