Vocabulary
Lines in the same plane that never intersect.
Parallel Lines
Are the lines perpendicular, parallel, or none?
y=-2/1+3
y=1/2 +5
Perpendicular
If my slope is m=1/2x, what kind of correlation would my scatter plot have?
Positive Correlation
What type of reflection is the following equation:
y=- lx-3l
A reflection 3 units to the right.
What lines have slopes that are opposite reciprocals?
Perpendicular Lines
When y tends to increase as x increases is what type of correlation?
Positive Correlation
Are the Lines perpendicular, parallel, or none?
y=2x+4
y=-1/2x-6
None
Find the line of best fit and the equation in point-slope form with the following points:
*use the first and the last point*
(1,1) (3,1) (5,3) (7,2)
Ex: y-1=1/6(x-1)
What absolute value equation represents a graph that is translated 3 units down from a graph of y= lxl?
y=lxl-3
What is the opposite reciprocal of 4?
-ΒΌ
Estimating a value between two known values is known as
Interpolation
Are The lines perpendicular, parallel,or none?
y=2x-4
y=4/2x+2
Parallel
What type of correlation is the following statement?
"Hours driven to the amount of fish in a tank."
No Correlation
What is the equation of the translation of y=lxl, 5 units up?
y=lxl+5
What is the slope of a horizontal line?
Zero
The parent function is y=lxl.
Absolute Value Function
Are the lines parallel, perpendicular, or none?
y=-4x+28
y=1/4x+1448
Perpendicular
What type of correlation is r=1?
Strong Positive Correlation
What type of translation is the following equation: y=lx-5l+3
A horizontal translation 5 units to the right, and a vertical translation 3 units up.
What angle do perpendicular lines form?
90 degree angle
A function that has different rules for different parts of its domain.
Piecewise Function
Which equation represents the line that passes through (3,5) and is perpendicular to the graph of y=1/5x+1 ?
y=-5/1x+20
Find the slope of the trend line with the following points:
(9, 42) and (15, 64)
m=11/3
How many units would the equation y=lx+2l be moved, and to what side of a graph?
2 units to the left
Would r=0 be negative, positive, or no correlation?
No correlation