Two numbers total 39 and hav a difference of 11

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

On a piece of paper graph f(x)=5•(0.4)^x

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.