Question

What is this equation called?

Picture will be attached!

Answer 1

@snowflake0531

Answer 2

@darkknight

Answer 3

how does one go from asking about line of best fit to that

Answer 4

Lol

Answer 5

So do you know?

Answer 6

maybe, ive seen the sign but im only i calc 1 so i don't really know, Maybe flor can help

Answer 7

@florisalreadytaken do u know?

Answer 8

Can someone try searching it up?

Answer 9

if you think it can be searched up then you search it

Answer 10

feel free to do that

Answer 11

I tried

Answer 12

I couldn't find anything

Answer 13

I don't know what to even search

Answer 14

ok am back

so, i was looking at your recently asked questions, and it all makes sense -- this is used to find the best fit line, and its formula

the equation has the form \( Y= a + bX\)

we can say that:
\(\cdot\)the dependent variable (the variable that appears on the Y axis) is Y.
`\(\cdot\)the y intercept is denoted by a.`
\(\cdot\)the slope of the line is denoted by b.
\(\cdot\)the independent variable is x.

so this right here \( a = \frac{\sum(y) \sum(x^2)- \sum(x) \sum(yx)}{N \sum(x^2)-( \sum(x)^2)} \) is a part of 'the linear regression equation', and its used to find the y intercept, or differently said, its used to find `a`.

im not sure if the a formula by itself has got a specific name tho.

id really like @jhonyy9 take a look at this -- maybe he knows something extra