Linear Equations
In slope intercept form, m represents what?
slope
using your calculator find the line of best fit for these points: (4, 15)(2, 7)(1, 5)
y=3.43x+1
If x increases and y increases the correlation is...
Positive
what is slope intercept form?
y=mx+b
What is the slope of a line with the points (-9, 17)(-1, 1)
m=-2
In slope intercept form, b represents what?
the y-intercept
find the line of best fit for these points:
(4,2), (10, 5)
y=1/2 x
Draw a positive correlation
...
What is Standard Form?
Ax + By = C
What is the y-intercept of the equation with the points: (-4, 7)(0, 8)(4, 9)
b=8
The formula for slope is what?
m=(y2-y1)/(x2-x1)
Using the line of best fit from this data, is this a positive or negative correlation?
(9, 21), (5, 16), (3, 17), (1,2)
Positive (m=2)
Draw a negative correlation
...
convert to standard form: y=3x+2
3x - y = -2
What is the slope of the line 3x - 2y = 1
m=3/2
What is the equation of the line that passes through the points (8, -12)(14, 12)?
y=4x-44
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
Draw no correlation
...
Convert to Standard Form: y = -3/5x - 7
3x + 5y = -35
What is the y- intercept of 4x - 9y = -36
4
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
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
As one variable increases the other variable decreases.
Negative correlation
Convert to slope intercept form: 3x - 4y = 2
y= 3/4x - 1/2
Find the x intercept of 3x + 4y = 9
3