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3 years ago

Graph the line with the equation y=-x-5y=−x−5.

Mathematics

1 answer:

AVprozaik [17]3 years ago

5 0

Answer:

Just getting points i hope u find the answer tho :))

Step-by-step explanation:

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Help me solve this math problem 3x+2y=3

tresset_1 [31]

First of all: subtract 3 from 3x then from 2y then divide

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The blue figure is a translation of the black image. Write a rule to describe the translation.

vivado [14]

Answer:

The point at the Origin was moved down 4 and right 2

Step-by-step explanation:

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3 years ago

WILL GIVE BRAINLIEST IF CORRECT!!

vfiekz [6]

Answer:

$\displaystyle y=-0.927x+13.63$

Step-by-step explanation:

<u>Simple Linear Regression </u>

It a function that represents the relationship between two or more variables in a given data set. It uses the method of the least-squares regression line which minimizes the error between the estimate function and the real data.

Let's compute the best-fit line for the data

$x=\{1,5,6,12,15\}$

$y=\{14,11,4,2,1\}$

First, we find the sums

$\displaystyle \sum x=1+5+6+12+15=39$

$\displaystyle \sum y=14+11+4+2+1=32$

Then, we compute the averages values

$\displaystyle \bar{x}=\frac{39}{5}=7.8$

$\displaystyle \bar{y}=\frac{32}{5}=6.4$

We will also compute the sums of the cross-products and the sum of the squares

$\displaystyle \sum xy=(1)(14)+(5)(11)+(6)(4)+(12)(2)+(15)(1)=137$

$\displaystyle \sum x^2=1^2+5^2+6^2+12^2+15^2=1+25+36+144+225$

$\displaystyle \sum x^2=431$

We will compute Sxy and Sxx

$\displaystyle S_{xy}=\sum xy-\frac{\sum x\ \sum y}{n}$

$\displaystyle S_{xy}=137-\frac{(39)(32)}{5}$

$\displaystyle S_{xy}=-117.6$

$\displaystyle S_{xx}=\sum x^2-\frac{(\sum x)^2}{n}$

$\displaystyle S_{xx}=431-\frac{39}{5}^2=126.8$

The slope of the linear regression function is given by

$\displaystyle m=\frac{S_{xy}}{S_{xx}}=\frac{-117.6}{126.8}=-0.927$

The y-intercept ot the linear function is

$\displaystyle b=\bar{y}-b\bar{x}=6.4-(-0.927)(7.8)$

$\displaystyle b=13.63$

Thus the best-fit line is

$\displaystyle y=-0.927x+13.63$

The correct option is the last one

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3 years ago

Select the graph which correctly displays the function f(x) = |x + 2|– 3.

Veronika [31]

Answer:

Graph 4

Step-by-step explanation:

I have to put more words lol

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3 years ago

The ratio of yellow balls to green balls in a a bag is 4:2<br> what faction of the balls are yellow?

liberstina [14]

4/6
= 2/3

As we take total and divide by what we looking for

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3 years ago

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