Function?
A relation is function if every input has exactly ______ output(s).
one
How do we say f(x)?
f of x
What kind of transformations are caused by multiplication by a number?
stretch/compression
as x increases, y-increases. What type of correlation is this?
Positive Correlation
2+3 *1/3 -4 = ?
-1
What doe we use to determine if a graph represents a function?
The Vertical Line Test (VLT)
Use the function rule f(x) = x+2.
What is f(5)?
7
What type of transformation is caused by multiplying by a negative?
Reflection/Flip
What type of correlation does days of the week and elephants in your house have?
no correlation
What is the slope between the points
(1,5) and (6, 15)?
2
The domain represents what in a function
The possible inputs/x-values
Use the function rule f(x) = 2(x+3).
What is f(2)?
10
What kind of transformation creates parallel lines?
translations/slides
The miles you drive and the amount of gas left
Negative correlation
Horizontal Lines have what a slope of _______
Zero
Is this set of points a function?
(1,2), (2,5), (3,7), (5,12)
Yes
Use the function rule f(x) = 2(x+4)+3.
What is f(12)?
35
Name the transformations on the function f(x)
g(x) = -2f(x)
Reflect over x-axis
Vertical Stretch by 2
What kind of correlation is represented by the following points:
(1,2), (3,5), (7,10), (15,25)
Positive Correlation
Solve the Absolute Value Inequality
|x+2| + 2 > 5
x > 1 and x < -5
Is this set of points a function?
(1,1), (2,1), (3,1), (4, 1), (1,1), (12,1)
Yes
Use the function rule f(x) = 2x+2.
What is f(x+4)?
2x+10
Name the Transformations on the function f(x).
g(x) = 3f(-2x -3) + 1
Vertical Stretch by 3
Reflect over y-axis
Horizontal Compression by 2
right 3
up 1
A correlation coefficient of r=-0.85 represents what type of correlation?
Negative correlation
What is the slope of the line perpendicular to
2x + 3y = 15
3/2