y=kx

Rate of speed is equal to 

• Distance/Time

• Time/Distance

• Time x Distance

• Acceleration

If a man runs at a speed of 70 m/s, and has a time of 30 s. What is the distance he ran?
r=
d=
t=

• 2100 m

• 0.233 m

• 2.33 m

• 300m

If a puppy runs across a park at a speed of 15 m/s. The puppy also has a time of 5 seconds. How far did the puppy run?
d=
r=
t=

• 5m

• 3m

• 0.33 m

• 75m

Joanna drives for 400km at an average speed of 80km/h. How long was her journey?
d=
r=
t=

•  15 hrs long

•  10 hrs long

•  5 hrs long

•  20 hrs long

Avery likes to walk 30 feet in 10 seconds. What is her speed?
d=
r=
t=

• 6 feet/sec

• 3 feet/sec

• 10 feet/sec

• 2 feet/sec

A taxi hurries at a constant speed of 42 miles per hour. How long will it take to travel a distance of 42 miles?
d=
r=
t=

• 42 hours

• 1 hour

• 2 hours

• 1 minute

At what rate  did the rain fall?
d=
r=
t=

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Is this graph proportional?

• Yes

• No

Is this graph proportional?

• Yes

• No

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

• y

• x

• 14

• 1/14