Graphing
To find a point from the following equations:
y=5x+3
What is plot the y-intercept?
You eliminate these terms in this system:
2y=3x+8 and y=-3x+2
What is 3x and -3x?
2x+y=4
x-y=5
What is x=3 and y=-2?
The specific ordered pair (x, y)that makes all equations in the system true.
What is the solution?
Anything multiplied by this number stays the same.
What is 1?
The slope of the equation:
y= -(3/5) x+7
What is m=-(3/5)?
You use this operation to eliminate for the system:
17=4x+9 and 38=4x+5
What is subtraction?
2x-3y=-1
y=x+1
What is x=-2 and y=-1?
This term describes a system of equations that has no solution but the same slope.
What are parallel lines?
When you multiply by this number, you get nothing.
What is 0?
To find the y-intercept you must first...
2x+3y=3
What is set x equal to zero?
This is the value of y for the system:
5y=x+3 and -4y=-x+4
What is y=7?
y=5x-7
-3x-2y=-12
What is x=2 and y=3?
A method for solving a system by manipulating the equations so that one variable is added or subtracted away.
What is elimination?
3.14159, not just a food.
What is pi?
The first step for solving the system:
y=3x+7
y=2x-2
This is the value of x for the system:
25=4x+5y and 5+6x=5y
What is x=2?
y=4x+6
-5x-y=21
What is x=-3 and y=-6?
A letter or symbol used to represent an unknown number or quantity.
What is a variable?
The products of this times table always sum up to 9.
What is 9?
The intersect of two or more lines in a system of equations.
What is the solution?
This is the solution for the system:
2x+y=10 and -2x+3y=6
What is (3,4)?
-3x+3y=4
x=y-3
What is no solution?
The process of rewriting one equation to isolate a variable and then plugging that expression into the other equation.
What is substitution?
This number is never positive or negative.
What is 0?