QUESTION IMAGE
Question
enter values for x and y in the table to plot points in the graph. to compare the teams their number of wins. y = 0.39x - 20.23 y = 0.39x + 20.23 y = - 0.39x - 20.23 y = - 0.39x + 20.23 the equation of the trend line is
Step1: Analyze the trend of the data
Looking at the \(x\) - values (let's assume \(x\) represents something like team's value, say budget or some positive - related metric) and \(y\) - values (number of wins). As \(x\) decreases (from \(137\) to \(103\)), \(y\) also decreases (from \(75\) to \(55\)). So, there is a positive correlation. The slope of a line with positive correlation is positive.
The equation of a line is in the form \(y = mx + b\), where \(m\) is the slope and \(b\) is the \(y\) - intercept.
Step2: Check the slope and \(y\) - intercept
For a line \(y=mx + b\), if \(m>0\), the line has a positive slope (as \(x\) increases, \(y\) increases; as \(x\) decreases, \(y\) decreases). Among the given equations \(y = 0.39x-20.23\), \(y = 0.39x + 20.23\), \(y=-0.39x-20.23\), \(y=-0.39x + 20.23\), the equations with positive slopes are \(y = 0.39x-20.23\) and \(y = 0.39x + 20.23\).
If we assume a reasonable \(y\) - intercept for the context of number of wins (a non - extremely large positive value when \(x = 0\) is not likely to be \(20.23\) if \(x\) is a non - negative quantity related to team performance). A more reasonable \(y\) - intercept for the trend of the data (assuming \(x\) is not zero in the practical range of the data shown) can be considered in terms of the general trend of the line.
Snap & solve any problem in the app
Get step-by-step solutions on Sovi AI
Photo-based solutions with guided steps
Explore more problems and detailed explanations
\(y = 0.39x-20.23\)