Please i need help

Step-by-step explanation:

A line can be defined by any two points on the line andhas the form

y=mx+b

Where m=slope and b=y intercept (value of y when x=0)

Slope is defined as

m=(y2-y1)/(x2-x1), we have points (0,7) and (1,4)

m=(4-7)/(1-0)

m=-3/1

m=-3 so the line is thus far

y=-3x+b, since we have the point (0,7) we know that b=7 so the line is

y=-3x+7

b) the dogs need to shift their focus to human scent.

6 on both sides and twelve on the top and the bottom

step-by-step explanation: