Proportions
Rates of Change
Direct Variation
Factoring Review
Are You Smarter than a 5th Grader?
100
Solve: x/12 = 17/4
51
100
If a car travels at a constant speed of 30 mph, how far will it travel in 3 hours?
90 miles
100
If y varies directly as x, find the constant of variation when y = 80 and x = 16.
k = 5
100
What is the greatest common factor of 6x and 10?
2
100
Which rectangle has a greater area: 8 in by 5 in, or 4 in by 10 in?
They're equal.
200
Solve for y: 14/y = 40/51
17.85
200
Find the slope of a line between the points (4, 7) and (6, 15).
4
200
If y varies directly as x and y = 48 when x = 3, write the direct variation equation of this relationship.
y = 16x
200
What is the greatest common factor between, 3xy^2 and 12xy?
3xy
200
What color do you get when you combine an equal amount of red and yellow paint?
Green
300
If Jill can solve 4 math problems in 7 minutes, how long will it take her to solve 50 problems?
87.5 minutes
300
Find the slope of a line between the points (-3, 5) and (-6, -1)
2
300
Your hourly rate is $8 per hour. Write a direct variation equation if x represents the number of hours and y represents the total amount earned.
y = 8x
300
Factor: x^2 + 9x + 14
(x + 7)(x + 2)
300
What is the name of the ship the Pilgrims took to get to the U.S.?
The Mayflower.
400
Solve: (x + 3)/5 = 8/11
7/11 or .63
400
See board #1
40 mph
400
If y varies directly as x and y = 15 when x = 6, find y when x = 28.
y = 70
400
Factor: x^2 - 3x - 54
(x + 6)(x - 9)
400
What country has the longest border with the U.S.?
Canada
500
Mark needs 5 pounds of cheese to make a meal for 30 people. How many pounds of cheese will he need to make a meal for 200 people?
33.3 pounds
500
See board #2
1.5 calories per minute
500
Questions in this section are too easy to be worth $500.
No points for you!
500
Factor: 3x^2 + 12x - 63
3(x + 7)(x - 3)
500
Jonas Salk developed a vaccine for which disease in the 1950s?
Polio
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