Find the residual values, and use the graphing calculator tool to make a residual plot.
Does the residual plot show that the line of best fit is
appropriate for the data?
х
Given
Predicted
Residual
No, the points are in a curved pattern.
No, the points are evenly distributed about the x-axis.
Yes, the points are in a linear pattern.
• Yes, the points have no pattern.
1
-2.7
-2.84
2
-0.9
-0.81
3
1.22
1.1
3.2
4
3.25
5
5.4
5.28

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.