Answer:

Step-by-step explanation:


Answer:
he will ride 81 miles in 5 hrs
Step-by-step explanation:
if he rides 18 miles in 2hrs then multiply 18x4 which is 72
then for the last hour split 18 in half which is 9.
then 72 + 9= 81 miles in 5 hrs
We know that -1/4x means we have a negative slope, which excludes the 1st graph from our answer choices.
Second, we know that the y-intercept has to be 3, excluding the second and third graph.
This leaves us with the 4th graph as our answer
2x +3(6) =36
2x +18=36
Subtract 18 from both sides
2x=18
X=9