If f(x)=2x-1 just plug in the 3 where x is. So it would be 2(3)-1=5
The time when the two trains reach each other is 1.25 hours
The trains are 68.75 away from the city when they reach each other.
Answer:
3. proportional
4. non propotional
Step-by-step explanation:
When the graph of the linear relationship contains the origin, the relationship is proportional
Area = 1/2 x base x height
Area = 1/2 x 9 x 4
Area = 9 x 2
Area = 18 cm^2
Answer:
the given equation is y=4/7x
reciprocating both sides you get y/x =7/4
now x and y are directly porportional to each other so
x=ky where k is the constant
or x/y=k ......................(2)
equating 1 and 2
k=7/4
Step-by-step explanation:
