Constant Rate of Change and Proportionality

In the equation y = 14x, what is the constant of proportionality?

• y

• x

• 14

What is the constant of proportionality in this table?

• 3

• 6

• 1.5

• 0.3

At what rate did the rain fall?

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

What does k represent in the equation y = kx?

• konkrete kids

• constant of proportionality

• kangaroos

• krispy kreme

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

What makes a graph proportional?

• Straight line

• The line goes through the origin

• Curvy line

• Straight line and the line goes through the origin

Which statement matches the graph?

• Taylor can write 6 words per minute

• Taylor can write 25 words per minute

• Taylor can write 50 words per minute

• Taylor can write 150 words per minute

Write an equation for this situation.

• y=9.75x

• y=19x

• y=19.25x

• y=9.5x

What is the constant of proportionality for this table?

• 1/9

• 9

• 8

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160