Y2-y1 / x2-x1 i think. not sure if that's correct
Answer:
Option C is correct.
Step-by-step explanation:
Points given are
(1,2) and (3,8)
The formula used for slope is:

x₁ = 1, x₂=3, y₁=2 and y₂=8

So, slope =3
Option C is correct.
Answer:
One gallon for 20 miles.
Step-by-step explanation:
200 / 10 = 20
1 gallon = 20 miles
<em><u>Plz mark as brainliest if correct! Have a nice day!!!</u></em>
<em><u>-Lil G</u></em>
Answer:
18
Step-by-step explanation:
y=k×x
15=k×5
=>k=15/5=3
when x=6,
y=3×6
=18