Fine the equation of the least square lines.
1. The paired data below consist of the cost of advertising (in thousands of dollars) and the number of products sold (in thousands of dollars)
Cost (x)| 9 2 3 4 2 5 9 10
Numbe(y)| 85 52 55 68 67 86 83 73
2. Solve the problem. A meteorologist in the Upper Peninsula of Michigan predicts an overnight low of -4° Fahrenheit. What would a Canadian meteorologist predict for the same location in Celsius?
3. Write an equation for the line. Use Slope -intercept form if possible Through (7,10), undefined slope
4. Write the augmented matrix for the system. Do not solve.
4x-2y=14
-2y=-2