This graph is a proportional relationship because it is linear and reaches (0,0).

The unit rate is 10 meters per second.

The direct variation equation is y = 10x.

According to this graph, the object would travel 60 meters in 60 seconds.

x = 13.5

x = -108

x = 1.5

x = 3

x = $\frac{-10}{11}$

x = $-4$

x = $-0.25$

x = $\frac{20}{11}$

12.25 hours

8 hours

7 hours

1.75 hours

 $n=\frac{3}{5}$  

 $n=-1$  

None of these are true

 $n=-\frac{5}{3}$  

 $n=1$  

y = x + 13

k = 65/5

y = 13x

y = $\frac{39}{3}=\frac{52}{4}=\frac{65}{5}$  

YES

NO

Only on your birthday.

Only on Mrs. Harbin's birthday.

YES

NO

Only if you are in 2nd period.

Only if you are in 3rd period.

Only if you are in 4th period.

The constant of proportionality

The unit rate

The 11th value in a sequence of numbers

The ratio of $\frac{y}{x}$ in proportional relationships

Yes, because Troy read 10 less pages in 10 less minutes.

No, because Sonny is reading faster than Troy.

No, because Troy is reading faster than Sonny.

Yes, because Sonny and Troy both have a 100 average which means they read at the same speed.