Graphing
Substitution
Elimination
Fun Facts
Word Problems
100
If a system of linear equations has no solutions, its graph consists of lines that are ___________ (fill in the blank).
Parallel
100
y=x
-x + 20y = 0
(0, 0)
100
x + y = 3
x - y = 7
(5, -2)
100
How many people are killed by vending machines every year in America?
13
100
D&E gets $5 for every Augusta concert ticket sold. Write an expression for earnings, e, in terms tickets sold, t.
e = 5t
200
Solve by graphing:
y = 3
y = 2x+1
(3, 1)
200
-x - y = 8
x = -3y
(-12, 4)
200
5x - y = 8
2x + y = -1
(1, -3)
200
What is the answer to life, the universe and everything?
42
200
At last year's commencement, four times more BA degrees were offered than BS degrees. If 200 students graduated, how many BS degrees were awarded?
40
300
Solve by graphing:
x + 2y = 3
x + y = 2
(1, 1)
300
6x + 4y = 2
2x + y = 0
(-1, 2)
300
7p + 4q= -12
4p + q = -3
(p,q) = (0, -3)
300
What is the biggest named number?
Googolplex
300
The sum of two numbers is 7. The difference of two numbers is 1. What are the two numbers?
(3,4)
400
Solve by graphing:
2x + y = -3
y = -(x + 4)
(1, -5)
400
x + 2y = 4
3x + 6y = 3
No solution
400
10x - 3y = 9
3x - 2y = -5
(3,7)
400
What is the volume of a pizza that has radius z and height a?
Pi z z a
400
At a student fund-raiser, the number of $2 raffle tickets printed was three times the number of $5 tickets. If all the tickets are sold, receipts from the $5 tickets will be $50 less than those from the $2 tickets. How many $5 tickets were printed?
50 t=3f 5f=2t-50
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