Trivia
What is the most common letter in the English alphabet?
E
What is the first step of substitution?
Isolate a variable
What is the first step of elimination method?
Check it is in standard form / Check if there are matching coefficients
What is the slope of the equation?
y = -1/3x +5
-1/3
What is the 2nd smallest country in the world?
Monaco
Substitute the following equations correctly:
y=-4x+2
2x-3y=5
2x-3(-4x+2)=5
2x+y = 3
4x+5y = 4
Multiply the first equation by 5 or -5
What is the y-intercept of the equation?
y=2/3x - 18.5
-18.5
What is the hardest rock?
Diamond
Solve for x:
2x+4(2x-6)=14
x=2
Do you add or subtract these equations:
2x+4y=-8
-3x-4y=5
Add
Graph the equation
y=2x+3
(See Solution)
How many eyes does a bee have?
5
Solve the system of linear equations by substitution.
6x-9=y
y=-3x
(1,-3)
Solve the system of linear equations by elimination
-x+y=4
x+3y=4
(-2,2)
Solve the system of equations using graphing:
y=-1/2x +1
y=x-5
(4,-1)
What is the biggest island?
Australia
Solve the system of linear equations by substitution.
2x-y=4
x-y=9
(-5,-14)
3x-8y=15
6x+2y=30
(5,0)
How many solutions are there in the following system of equations:
2x+y=4
-2y-4x=5
No solutions