Vocab
The _________ of 120 and 4 is 30.
Quotient
In order to add/subtract fractions, we must have....
A common denominator
__________ is the odds of something happening
Probability
This coordinate measures the jump of a graph.
Y coordinate
A. Pi x Radius
B. Pi x Radius Squared
C. Pi x Radius Squared x Height
D. Diameter / 2
B. Pi x Radius Squared
Scale Factor
What is a common denominator of 4 and 3?
12
Name the 5 categories (based on percents) that probabilities fall under.
Impossible, unlikely, equal, likely, certain.
Find the slope: (4, 6) (7, 7)
HINT: This is the one with Y2, Y1, X2, X1 in it.
1/3
FIND THE MEDIAN
3, 5, 2, 6, 7, 11, 13
6
A ______ - ________ question is one with select answer options.
Close-ended
(-3/4) + (4/4)
+1/4
If the sample is the smaller group we study, what is the entire group called? Example: You 7th graders are a sample. ALL 7th graders across the world would be called the ________.
Population
Name the 4 types of slope
Undefined, zero, positive, negative
3X + 7 + 2X + 5 = 32
X = 4
The ________ is the middle of the data set when placed in order for lowest to biggest.
Median
1/2 divided by 5/7
7/10
We LOVE using __________ when it comes to random samples.
In the equation Y = 3X + 2, where does the line cross the Y axis?
2
Label all the pieces of this equation. (There's 4)
4Y - 2 = 6
4 = coefficient
Y = variable
-2 = constant
6 = difference
The change in Y over the change in X is called the what?
Slope
Name BOTH steps in turning a mixed number into an improper fraction.
1. Multiply denom by front number
2. Add numerator
What is the probability of rolling an even number on a regular die and flipping heads on a coin?
1/2 x 1/2 = 1/4 or 25%
The linear function on a data graph has points at (-2,1) (0,1), (5,1), and (12,1). What type of slope is the linear function showing?
Zero, the Y coordinate never changes, so this is a straight line going left/right.
List the formula for volume of a cylinder.
Pi x Radius Squared x Height