Proportional Relationships of Fractions

What ratio is equivalent to 4:5? Select all that apply.

• 8:10

• 20:25

• 5:6

• 1:5/4

What does k represent in the equation y = kx?

• constant rate of change

• constant of proportionality

• the equation

• x/y

Which graph is non-proportional?

• A

• B

• C

• D

Write how to find the proportion of

2:8 :: 25:625

(Do not give space first right the means than the extremes.)

Mathematical Equivalence

ON

Proportional or not

8/9 = 16/18

• Yes

• No

Two quantities are ​ (a)   if the ratios comparing them are equivalent.

• proportional

• nonproportional

• constant of proportionality

• proportion

Two quantities are in a ​ (a)   if the two quantities vary and have a constant ratio between them.

• proportional relationship

• proportional

• unit rate

• nonproportional

• constant of proportionality

Are 5/6 and 15/18 proportional?

• Yes

• No

Are 5/6 and 15/18 proportional?

• Yes

• No

Proportional or not

5/6 = 60/50

• Yes

• No