Scaling With Proportions

What is the scale factor?

What is the value of side BC?

• 9.3

• 3

• 9

• 9.3x

Is this equation y = 14x showing proportionality?

• yes

• no

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

• x = 3y

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

• y

• x

• 14

Write an equation for this relationship.

• y=1/5x

• y=1/2x

• y=2x

• y=5x

If the constant of proportionality is 10, which of the following is the correct proportional equation?

• 10=kx

• 10=k

• y=10k

• y=10x

Is the graph proportional or non proportional?

• Proportional because it is a straight line.

• Non-Proportional because it doesn't pass through the origin.

Sargento cheese slices $2.48 for 10 slices
or
Velveeta Cheese slices $3.18 for 12 slices
Find the unit price for each and choose the better deal.

• Sargento

• Velveeta