Slope and Constant of Proportionality

Which line is the steepest?

• red

• blue

• black

• yellow

• They are all the same.

A graph of a proportional relationships has which characteristics? Select all.

• It is a straight line.

• It passes through the point (1,1).

• It increases and decreases.

• It is curved.

• It passes through the origin (0,0).

True or False: Slope is known as rate of change.

• True

• False

You should write slope as a fraction in simplest form.

• Always

• Never

• Sometimes

What is the constant of proportionality for this table?

• 1/9

• 9

• 8

In the equation y = 14x, what is the constant of proportionality (also know as the slope)?

• y

• x

• 14

Is the given table a proportional relationship? If so, what is the constant?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

a number that is a ratio that describes the steepness of a line

• slope

• y-intercept

• domain

• range

Calculate the constant rate or the constant of proportionality.

• 1

• 2

• 11

• Not a constant slope

Describe the characteristics of a graph that is proportional?

• Makes a straight line (linear) anywhere on the graph

• Curvy Line

• Makes a straight line (linear) and goes through the origin (0,0)