Vocabulary Unit 5

a relationship between TWO quantities in which the RATIO of one quantity to the other quantity is CONSTANT.

• rate of change

• slope

• proportional relationship

• unit rate

y = mx + b

• slope-intercept form

• unit rate

• linear equation

• rate of change

a RATIO that compares the amount of CHANGE in a DEPENDENT variable (y) to the amount of change in an INDEPENDENT variable (x).

• y-intercept

• linear equation

• unit rate

• rate of change

POINT at which a straight line CROSSES the Y-axis; INITIAL value.

• slope

• x axis

• y-intercept

• constant of proportionality

an equation whose solutions form a STRAIGHT LINE on a coordinate plane.

• linear equation

• y-intercept

• unit rate

• answer to addition problem

a rate in which the SECOND quantity in the comparison is ONE unit.

• slope

• linear equation

• nonlinear relationship

• unit rate

a measure of the STEEPNESS of a line on a graph; the RISE divided by the RUN.

• nonlinear equation

• slope

• bivariate data

• proportional relationship

Constant of proportionality

• l

• o

• k

• c

Bivariate data is

• a rate in which the second quantity in the comparison is one unit

• a set of data this is made of two paired variables

• an equation whose solutions form a straight line on a coordinate plane.

• y = mx + b

a relationship between two variables in which the data do NOT INCREASE or DECREASE together at the same rate.

• unit rate

• rate of change

• linear equation

• nonlinear equation