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# Graphing

28. x + y = 18

24. 3x _ 4y _ 12 (0, ) (0, ), , ( , 0),

26. y=2x + 5 (0, ), ( , 5),( ), ( , 1)
28. x + y = 18

Give the coordinates of the points graphed below ( I couldn't load the graph, but it wanted o show the points)

2. B
4. D

23.Plot points with coordinates (2, 3), (3, 4), and (4, 5) on the given graph. What do you
observe? Can you give the coordinates of another point with the same property?

Graph each of the following equations
20. y= +2

28. 28. 2x + 3y =6

34. 2x - 3y = 12

50. Business and finance. The cost of producing a number of items x is given by
C = mx + b, in which b is the fixed cost and m is the variable cost (the cost of
producing one more item).
(a) If the fixed cost is \$40 and the variable cost is \$10, write the cost equation.
(b) Graph the cost equation

14. (-5, -3) and (-5, 2)

In Exercises 19 to 24, two points are shown. Find the slope of the line through the given
points.

52. m varies directly with n; m = 144 when n =8.

Business and finance. The revenue for a sandwich shop is directly proportional
to its advertising budget. When the owner spent \$2000 a month on advertising, the
revenue was \$120,000. If the revenue is now \$180,000, how much is the owner

World Motor Vehicle Production, 1950-1997
Production (in thousands)
Year UnitedStates Canada Europe Japan Other World Total
1997 12,119 2,571 17,773 10,975 10,024 53,463
1996 11,799 2,397 17,550 10,346 9,241 51,332
1995 11,985 2,408 17,045 10,196 8,349 49,983
1994 12,263 2,321 16,195 10,554 8,167 49,500
1993 10,898 2,246 15,208 11,228 7,205 46,785
1992 9,729 1,961 17,628 12,499 6,269 48,088
1991 8,811 1,888 17,804 13,24 5,180 46,928
1990 9,783 1,928 18,86613,487 4,496 48,554
1985 11,653 1,933 16,113 12,271 2,939 44,909
1980 8,010 1,324 15,496 11,043 2,692 38,565
1970 8,284 1,160 13,049 5,289 1,637 2 9,419
1960 7,905 398 6,837 482 866 16,488
1950 8,006 388 1,991 32 160 10,577

4. What was the percentage increase in motor vehicle production in countries outside
the United States from 1950 to 1997?

8. Between 1950 and 1997, did the production of motor vehicles increase by a greater

Second day
air freight
40% Next day
air freight
15%
Truck
45%
2. If the company shipped a total of 550 items last month, how many were shipped
using second-day air freight?
18. In which year did the greatest percent increase in filings occur

#### Solution Summary

Graphs are interpreted and drawn.

\$2.19