Ratios & Proportions
This term describes a relationship where the ratio of two variables is constant, often written as y=kx.
What is a proportional relationship?
This is the distance a number is from zero on a number line, always expressed as a positive value.
What is absolute value?
This is a mathematical statement that two expressions are equal.
What is an equation?
This is the term for two angles whose measures have a sum of 90 degrees.
What are complementary angles?
This type of sample is one in which every member of the population has an equal chance of being selected.
What is a random sample?
This specific point on a coordinate plane must be passed through for a graph to represent a proportional relationship.
What is the origin (or (0,0))?
This property states that a(b+c)=ab+ac.
What is the distributive property?
These are parts of an algebraic expression separated by plus or minus signs, such as 3x and 5 in the expression 3x+5.
What are terms?
This is the ratio of a circle's circumference to its diameter.
What is Pi?
This is the probability of an event that is "certain" to happen.
What is 1 (or 100%)?
This is the unit rate of a car that travels 1/2 mile in 1/60 of an hour.
What is 30 miles per hour?
These are numbers that can be written as a fraction of p/q, where p and q are integers.
What are rational numbers?
This is the coefficient of x in the expanded expressions 3(2x-4)+5x.
What is 11?
This is the name of a 2D drawing of a 3D figure that can be folded to form the figure.
What is a net?
This is the middle value of a data set when the numbers are arranged in numerical order.
What is the median?
In the equation y = 4.5x, this is the name given to the number 4.5.
What is the constant of proportionality?
This is the result when you add a number to its additive inverse.
What is zero?
This is the term for a number that does not change in an expression, like the 7 in 2x+7.
What is a constant?
This 2D shape is formed by the cross-section of a rectangular prism cut parallel to its base.
What is a rectangle?
This statistical measure is calculated by subtracting the lower quartile (Q1) from the upper quartile (Q3).
What is the Interquartile Range (IQR)?
To find the original price of an item after a 30% discount, you would divide the sale price by this decimal.
What is 0.7 (or 0.3 and then subtract from the original)?
This is the simplified value of (-2)3 - (-10) .
What is 2?
When solving an inequality, you must flip the inequality sign when performing this specific action.
What is multiplying or dividing by a negative number?
To find the volume of any right prism, you multiply this specific part of the base by the height.
This is the total number of possible outcomes when flipping a coin 3 times.
What is 8?