Berlin, Germany, and El Calafate, Argentina, are about the same distance from the equator. The graph below shows a line of best fit for data collected on the average high temperature in El Calafate as a function of the average high temperature in Berlin.
https://app128.studyisland.com/pics/106836q4.png

Question

Berlin, Germany, and El Calafate, Argentina, are about the same distance from the equator. The graph below shows a line of best fit for data collected on the average high temperature in El Calafate as a function of the average high temperature in Berlin.
https://app128.studyisland.com/pics/106836q4.png

anonymous · Answer

Which of the following is the equation of the line of best fit?

anonymous · Answer

https://media.studyisland.com/cgi-bin/mimetex.cgi?y \%20=\%20-\frac{4}{7}x\%20+\%2090

ikram002p · Answer

hmm find the slope , and make a minear equation..

anonymous · Answer

How do you do that?

ikram002p · Answer

consider the two point :-
|dw:1395405584255:dw|

ikram002p · Answer

so u have 
 $\large p_0=(x_0,y_0)= (75,45)$
$\large p_10=(x_1,y_1)= (90,37.5)$

slope = $\Huge \frac {y_1-y_0}{x_1-x_0}$

ikram002p · Answer

slope = $\Huge \frac {37.5-45}{90-75}$

anonymous · Answer

Ok so do i just solve those problems

ikram002p · Answer

the line equation :-
$\Huge \color{red }{(y-y_0)=\color{green}{ m }(x-x_0) }$

s,t $\color{green}{ m }= $slope

ikram002p · Answer

yes , solve m (slope)
then find the line equation :D

anonymous · Answer

Ok Thank you sooo much!!!!!!!

ikram002p · Answer

ur wlc !