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Definitions
Solving by Graphing
Solving by Elimination
Solving by Substitution
Best Fit Lines
100

More than one equation to be solved at the same time is know as this.

What are simultaneous equations?

100
The quadrant in which the solution to the following system lies:

y = x + 4
y = 2x + 5

What is II
100

The solution to the system of equations:

r + s = -6
r - s = -10

What is r= -8, s= 2?

100
The solution to the system:

x = 4y
2x + 3y = 22

What is (8, 2)
100

True or false: a best fit line is an absolutely accurate representation of a data set

What is false? 

(it is a general representation)

200
The ratio of rise to run
What is slope?
200
The solution to the system of equations:

y = 3x - 2
y = -x - 2

What is (0, -2)?
200

The solution to the system:

8a + 5b = 9
2a - 5b = -4

What is a=0.5, b=1?

200
The solution to the system

y = x - 2
3x - y = 16

What is (7, 5)
200

When determining a best fit line, you draw a line that does what to the points

What is has an equal number above and below the line? 
300

The inverse operation to addition

What is subtraction?

300
The solution to the system of equations:

y = -3
x = 5

What is (5, -3)
300

The solution to the system:

2x + 3y = 6
3x + 5y = 15

What is (-15, 12)?

300
The solution to the system

y = 3x - 1
7x + 2y = 37

What is (3, 8)
300

The method for determining a slope of a best fit line

What is picking points on the best fit line and calculating rise over run? 

(change in y/change in x)

400

The answer to an equation or system of equations.

What is a solution?

400
The solution to the system of equations

y = (1/3)x - 3
2x - y = 8

What is (3, -2)
400

The solution to the system

2a - b = 12
-3a + 16b = -18

What is a=6, b=0

400
The solution to the system

3s - 2t = 4
t = 2s - 1

What is (-2, -5)
400

A line going down and to the right has this type of correlation

What is a negative correlation?

500
y = mx + b is more formally known as this.
What is slope-intercept form.
500
The solution to the system of equations:

y - 3x = 3
y = 3x - 2

What is no solution?
500

The solution to the system:

(1/3)x + (1/4)y = 10
(1/3)x - (1/2)y = 4

What is x=24, y=8?

500
The solution to the system

t + u = 12
t = (1/3)u

What is (3, 9)?
500

The main steps in determining an equation of a line from a given set of data

What is 

1. plot the data

2. draw a best fit line

3. determine the slope and y-intercept

4. write in slope-intercept form