Linear+Relations+Test+Questions

=Linear Relations Test Questions=

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Post only **winning** questions here. Post runner-up questions at Linear Relations Runner-Up Test Questions. Post the answer to the **winning** questions here: Linear Relation Test Question Answer Page = =

Class A
1. Show if the lines which pass through the points below are parallel, perpendicular, or neither. a) (4, 3) and (-7, 4) b) (0, -1) and (-3, 4) c) (6, -4) and (4, -1)

2. Andrew is a pizza delivery guy. He gets paid $9/hour in addition to 50% of his tips. a) What is the equation of the linear relation created by this scenario? b) Is this a partial or direct variation? c) How much does he earn per hour if he makes $10 in tips? $24? $36.78?

3. Frank is building a Jenga tower on top of a small stool. The stool is 19.96 cm tall. Each Jenga block is 3.12 cm tall. a) What is the equation of the linear relation created by this scenario? b) Graph this relation. c) Graphically find how tall the tower would be if Frank stacked 7 blocks on top of each other.

4. Submarines depend on pressure to move along the water. The pressure depends on the depth. At a depth of 3 m, the pressure is 130 kPa (kiloPascals). At a depth of 8 m, the pressure is 180 kPa. a) State the equation of the line in slope y-intercept form, where x is depth and y is pressure.

5. An equation of a line is Jx-5y+6=0. If the line passed through (15, 8), what is the value of J?

6. State the equation of the line parallel to 3x+2y-6=0 that passes the point (2,3).

7. Tom Ketchup is a plumber. He charges a fixed cost of $45 and $14/hour. He wants to buy a gingerbread bike for $535, tax included. a) How many hours would he have to work to buy the bike? b) Create a table of values for this linear relation. c) Graph this linear relation.

8. Graph the equation y=x²-2


 * Class C**

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3. In 1995, Mike had 3 750 000 strands of hair on his head. In 2009, Mike only has 500 000 strands of hair left. What is the average number of strands of hair Mike loses every year to the nearest 1000 strands of hair?======

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7. The school's expenses include the teacher salary and the building costs. Supposedly when 12 teachers are employed, the cost is $1210/ year (including building costs). When 8 teachers are employed, the costs are $890/year.======