Linear Equations
Line of Best Fit
Correlation
Conversions
Miscellaneous
100
In slope intercept form, m represents what?
slope
100
using your calculator find the line of best fit for these points: (4, 15)(2, 7)(1, 5)
y=3.43x+1
100
Positive
100
what is slope intercept form?
y=mx+b
100
What is the slope of a line with the points (-9, 17)(-1, 1)
m=-2
200
In slope intercept form, b represents what?
the y-intercept
200
using your calculator find the line of best fit for these points: x:400, 120, 300, 950
y:8, 2, 3, 12
y=0.01x+0.86
200
c
200
What is Standard Form?
Ax + By = C
200
What is the y-intercept of the equation with the points:
(-4, 7)(0, 8)(4, 9)
b=8
300
The formula for slope is what?
m=(y2-y1)/(x2-x1)
300
Using the line of best fit from this data, is this a positive or negative correlation? x:9, 5, 3, 1
y:21, 16, 17, 2
Positive (m=2)
300
Draw a strong negative correlation
...
300
convert to standard form: y=3x+2
3x - y = -2
300
What is the slope of the line 3x - 2y = 1
m=3/2
400
What is the equation of the line that passes through the points (8, -12)(14, 12)?
y=4x-44
400
Using the data below, Find the line of best fit and use it to estimate y if x=5
x: 2, 4, 6, 8
y: 4, 8, 15, 16
y=10.75
400
Draw no correlation
...
400
Convert to Standard Form: y = -3/5x - 7
3x + 5y = -35
400
What is the y- intercept of 4x - 9y = -36
4
500
What is the equation of the line with a slope of -2/3, and passes through the point (6,-7)?
What is y=-2/3x - 3
500
Using the line of best fit for this data, x is about____ when y=10.
x:5, 10, 15, 21
y:4, 8, 15, 16
x= about 12
500
As one variable increases the other variable decreases.
Negative correlation
500
Convert to slope intercept form: 3x - 4y = 2
y= 3/4x - 1/2
500
Find the x intercept of 3x + 4y = 9
3