A data set consists of the following data points:(2, 4), (4, 7), (5, 12)The line of best fit has the equation y = 2.5x – 1.5. Wh
at does this equation predict for a value of x = 3?
2 answers:
You might be interested in
I'm assuming you're referring to problem 6. You are asked to find the number of x intercepts or roots, which is another term for "zero". I prefer the term root or x intercept as "zero" seems misleading. Anyways, all we do is count the number of times the graph crosses the x axis. This happens 4 times as shown in the attached image below. I have marked these points in red. The graph can directly cross over the x axis, or it can touch the x axis and then bounce back. Either way, it is considered an x intercept.
<h3>Answer: there are 4 x intercepts (or 4 roots)</h3>