Medal for best explaination.
Which of the following equations could be the trend line of variables that have a negative correlation?
y = -2x + 1
y = x + 1
y = 2x - 1
i know that its the first one & that m is the slope what is c? And how do i make this equation if im looking at a scatter plot. (posting one for an example)

Question

Medal for best explaination. 
Which of the following equations could be the trend line of variables that have a negative correlation?
y = -2x + 1
y = x + 1
y = 2x - 1
i know that its the first one & that m is the slope what is c? And how do i make this equation if im looking at a scatter plot. (posting one for an example)

anonymous · Answer

attachment

teddyiswatshecallsme · Answer

So you want to know how to make a scatterplot and trendline?

anonymous · Answer

how do i get make an equation for a scatter plot.

anonymous · Answer

multiply both the numerator and denominator by; negative 1...not sure though sry

teddyiswatshecallsme · Answer

I suggest you take a look at this: http://www.virtualnerd.com/algebra-2/linear-equations-functions/scatter-plots-best-fit-lines/scatter-plot-predictions/prediction-equation-example