Ratios and Proportional Relationships
What is a rate?
A rate is a comparison of two quantities that have different units, such as miles and hours.
What is a factor and what does it mean "to factor"?
A factor is a number that is multiplied by another number to get a product. "To factor" is to write a number or an algebraic expression as a product.
What is an intersection?
An intersection is a point or set of points common to two or more geometric figures.
Potent Potable: Where would you find the smallest bone in your body?
The ear
What is the probability (P) of an event?
The probability is the likelihood of an event happening. P measures the likelihood of occurrence.
How can ratios and rates be expressed?
Ratios and rates can be expressed as fractions.
How can you use two-step equations to represent real-world problems?
You can use two-step equations to represent real world problems by translating the words of the problems into numbers, variables and operations?
What is a plane?
A plane is a flat surface that extends forever in all directions.
How do we summarize or highlight important aspects of the data?
By finding the mean, median, and mode of the data?
How can you describe the likelihood of an occurrence?
Impossible (0). Unlikely (close to 0). As likely as not (close to 1), certain (1)
Potent Potable: Which planet is called the red planet?
Mars
How can you solve equations with more than one operation?
You can inverse operations to solve equations with more than one operation.
How do you define a cross-section?
A cross-section is the intersection of a three-dimensional figure and a plane.
What is an IQR?
An IQR (Interquartile Range) is the difference between the upper and lower quartile.
How can probability be written?
As fractions, decimals and percentage.
What equation can be used to describe a proportional relationship?
The equation y=kx can be used to describe the proportional relationship between x and y.
Will the inequality remain true if you add or subtract the same number to/from both sides of an inequality; and if you multiply or divide both sides of an inequality by the same positive number?
Yes, the inequality will remain true.
What are adjacent angles?
They are angles that share a vertex and one side but do not overlap?
What is a histogram?
It is a bar graph representing frequency of numeric data in an interval.
What is a sample space?
A set of all possible outcomes of an event.
When is a relationship proportional?
When the rate of change is constant or steady, it is a proportional relationship.
What do you have to do with an inequality to remain true if you multiply or divide both sides of an inequality by the same negative number?
You must reverse the inequality symbol for the statement to still be true.
Potent Potable: How many countries are in the European Union?
27
What is the range of a data set?
It is a difference between the greatest and least value in the data.
What is the equation for probability (P)?
P = number of times the event occurs / divided by the total number of equally likely possible outcomes.