Answer:
See attachment for graph
Step-by-step explanation:
Given

Required
The graph that shows the number of miles in x hours
We have:

Multiply both sides by x


So, the function is:

Answer:
20 km/h
Step-by-step explanation:
the total time is 0.5 hours as the cyclist travels for 30 minutes
the formula for speed is distance travelled divided by time taken which gives us 20 km/hr
The value of 2 in 2481 is 1000 less times the value of 2 in 5072
(x-3)(x-7)=0
x=3,7
hope this helps!