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Which three go together? Why do they go together?
BScatter plot and line, no grid, origin O. Horizontal axis from negative 6 to 4 by 2’s. Vertical axis from negative 16 to 4 by 2’s. 13 data points. Line goes from 0 comma negative 16 upward and to the right to 4 comma 0. 3 data points fall on the line, 5 points below the line, 5 points above the line.
Here are a graph and a table showing the number of sales of eyeglasses based on the price in dollars. The model, represented by , is graphed with a scatter plot. Use the graph and the table to answer the questions.
Scatter plot and line on grid. Horizontal axis, price per eyeglasses, dollars, from 0 to 70 by 10’s. Vertical axis, number of sales, from 0 to 1100 by 100’s. Line starts at 0 comma 1000, downward and to the right passing through 25 comma 600 and 62 point 5 comma 0. 19 data points, as listed in table below. 11 data points below line, 7 data points above line, 1 data point on line.
| price per eyeglasses (dollars) | 8 | 9 | 10 | 15 | 16 | 17 | 20 | 22 | 26 | 28 |
|---|---|---|---|---|---|---|---|---|---|---|
| number of sales | 850 | 800 | 900 | 789 | 703 | 725 | 658 | 640 | 614 | 540 |
| price per eyeglasses (dollars) | 30 | 34 | 37 | 40 | 42 | 48 | 50 | 55 | 57 | 60 |
|---|---|---|---|---|---|---|---|---|---|---|
| number of sales | 520 | 425 | 380 | 370 | 370 | 305 | 175 | 136 | 75 | 25 |
Priya’s family keeps track of the number of miles on each trip they take over the summer and the amount spent on gas for the trip. The model, represented by , is graphed with a scatter plot.
Use the graph and equation to complete the table. Then, use the graph, equation, and table to answer the questions.
Scatter plot and line on grid, origin O. Horizontal axis, distance, miles, from 0 to 150 by 50’s. Vertical axis, amount spent on gas, dollars, from 0 to 90, by 10’s. Line starts at 0 comma 50, moves upwards and to the right passing through 100 comma 65, ending near 180 comma 77. 10 data points at 50 comma 60, 60 comma 67, 70 comma 65, 80 comma 68, 100 comma 75, 110 comma 60, 140 comma 65, 150 comma 80, 160 comma 76. 8 points below line, 2 points above line.
| distance (miles) | amount spent on gas (dollars) | estimated amount spent on gas (dollars) |
|---|---|---|
| 50 | 60 | |
| 70 | 65 | |
| 100 | 75 | |
| 60 | 67 | |
| 110 | 60 | |
| 140 | 65 | |
| 80 | 68 | |
| 150 | 80 | |
| 160 | 76 |