Math Vocabulary
Define rational number.
A rational number is any number that can be expressed as a fraction
This inequality symbol is used when a word problem contains the phrase "at most."
What is (less than or equal to)?
A bird is 20 feet above sea level, and a fish is 5 feet below sea level. What is the total distance between them?
25 feet.
A horizontal slice through a cylinder results in this shape, which matches its base.
What is a circle?
This is the specific point on a coordinate plane that a line must pass through to be considered proportional.
What is the origin (or 0,0)?
Define ratio
A ratio is a mathematical comparison of two or more quantities, indicating their relative sizes, amounts, or how many times one number contains another.
When graphing x > 5 on a number line, you must use this type of circle.
What is an open circle?
The temperature drops from 10°F to -4°F. What was the total change in temperature?
14 degrees
This type of angle measures exactly 90 degrees and is often marked with a small square in the corner.
What is a right angle?
This is the distance a number is from zero, always expressed as a positive value.
What is absolute value?
Define probability.
Probability is the branch of mathematics measuring the likelihood that a specific event will occur, expressed as a number between 0 (impossible) and 1 (certain).
This is the direction you shade on a number line to represent the solution x greater than or equal to -2.
What is to the right?
Marcus has -$10 in his bank account. He spends another $15. What is his new balance?
-$25
These are two angles whose sum is exactly 180 degrees.
What are supplementary angles?
This property allows you to change 3(x + 4) into 3x + 12.
What is the Distributive Property?
Define circumference.
The circumference is the total distance around the outside of a circle, ellipse, or any rounded, closed shape.
If a problem says "the minimum height required is 48 inches," this inequality symbol should be used.
What is (greater than or equal to)?
On a horizontal number line, which direction do you move when you add a negative number?
Left
If Angle A and Angle B are complementary and Angle A measures 35 degrees, this is the measure of Angle B.
What is 55 degrees?
This is the formula used to find the area of a circle.
What is A =pi x r2?
Define compound event.
A compound event in probability is an event that combines two or more simple, individual events, such as flipping a coin and rolling a die simultaneously.
Solve for z: -4z < 20
What is z > -5? (Don't forget the flip!)
In the expression x - y, if x is a negative rational number and y is a positive rational number, the final answer will always have this sign.
NEGATIVE
A parallelogram with four equal sides is known by this name.
What is a rhombus?
If you roll a standard 6-sided die, this is the probability of rolling a 4.
What is 1/6?