Answer:
Assuming you want an equation, y = -4/3x - 1
Step-by-step explanation:
Formula is y = mx + b
m = slope= -4/3
b = y-intercept = -1
Let's assume that Kirby walks with a speed

for a time

, and that he runs with a speed

for a time

.
The total time available for Kirby to catch the train is:

and this must be equal to the sum of the two times t1 and t2:
The distance Kirby should cover is

and this should be equal to the sum of the distances covered by walking and by running:

So we have a system of 2 equations:


If we solve the system, we find:


So, Kirby needs to run at least for 8 minutes in order to catch the train.
I think ur answer B.) srry if wrong .
Also i have something important to say.
(You may or may not heard of it.)
Feluka,Iahivintha an other username are posting links that give you viruses. DON'T TRUST LINKS.
THIS is the link an there is a new one PLEASE DON'T CLICK IT c utt.ly/nz6 VGda and is.gd/ qKzp BU
There more and more people doing this.
If you see this link don't click it. IT will send a virus and download bad stuff on your device. Please repost so people wont fall for it. Have a good day or night. <3