2.1 Review Worksheet, Part 1 (continued)
2.1.2 Proportional Reasoning Solve each proportion. 20. = n 55 200 143 21. = y 1.24 3 15
= x 0.1 1.1 110
22 11
x 7
22.
23.
=
24. A quality control inspector has found that 3.2% of the garments produced at Standard Garments contain a defect. If Standard Garments produces 4117 garments in one day, how many of those garments are expected to have a defect?
25. △ ABC has vertices A (0,0), B (8, 0), and C (8, − 6). △ ADE is similar to △ ABC with a vertex at D (6, 0). Graph △ ABC and △ ADE on the same grid.
26. A basketball rim 10 ft high casts a shadow 15 ft long. At the same time, a nearby building casts a shadow that is 54 ft long. How tall is the building?
2.1.3 Graphing Linear Functions Determine whether each data set could represent a linear function. 27. 28.
x
x
2 3 4 5 0 1 2 1
–3 –1 1 3 1 1.5 2 2.5
f ( x )
f ( x )
Graph each line. 29. slope 2; passes through ( − 3, 0)
30. slope − 2.5; passes through (1, 6)
− 1 2 ; passes through (0, 8)
− − 1 4 ; passes through ( 1, 2)
31.
32.
slope
slope
−
108
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