Find the residual values, and use the graphing calculator tool to make a residual plot.
2 answers:
<u>Answer-</u>
D. No, the points are in a curved pattern.
<u>Solution-</u>
The difference between the observed or given value of the dependent variable and the predicted value is called the residual. Each data point has one residual.
<em>If the points in a residual plot are randomly dispersed around the horizontal or x-axis, a linear regression model is appropriate for the data. Otherwise, a non-linear model is more appropriate.</em>
Plotting a graph, by taking the residual values on ordinate and values of given x on abscissa, a non-random U pattern is obtained.
So a non-linear model will be a better fit for this data set.
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No, (2,2) is not solution of y < 4x - 6
Step-by-step explanation:
To solve above linear problem, we use standard method of Back- Substitution.
First of all, A point (2,2) only becomes solution of equation, if it satisfies equation .
Here, the seems to be like a linear equation.
In this Equation, using Back- Substitution method,
Point (2,2) : first digit 2 corresponds to x- coordinate and second digit 2 corresponds to y-coordinate.
By putting value of x and y in equation (1),
Equation becomes,
.... not true mathematically.
Finally, the result came is not true. Therefore, (2,2) is not solution for equation