Lesson 22 Vocabulary Test

The opposite of a number.

• multiplicative inverse

• additive inverse

• absolute value

• integer

An expression that contains at least one variable.

• algebraic equation

• coefficient

• algebraic expression

• numeric expression

The two perpendicular lines of a coordinate plane that intersect at the origin.

• axes

• graph

• independent variable

• dependent variable

The numbers of an ordered pair that locate a point on a coordinate graph.

• variables

• integers

• constants

• coordinates

A member of the set of whole numbers and their opposites. (...-3;-2;-1;0;1;2;3...)

• natural number

• rational number

• whole number

• integer

Which variable depends on what is done at the beginning of an experiment?

• Dependent
• Independent
• Control
• Following

Research question: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?

• How far they kick the soccer ball
• who the person is
• how well they do on the math test
• Type of soccer ball.

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control
• Compound

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

• Distance traveled by the ball
• Height of the ramp
• Mass of the ball
• Where the experiment took place.