Answer:
y=-48x+438
Step-by-step explanation:
270-210/3.5-4.75= -60/1.25
y=-48x+b
210=-48(4.75)+b
210=-228+b
438=b
y=-48x+438
Length of circular track is:
L = 2*r*pi
He run 3/4 of it so length is:
L' = 3*2/4*r*pi = 3/2*r*pi
To calculate speed of his movement we use formula:
v = s/t where s = L' and t = 1 minute 45 seconds = 105 seconds
v = L'/t =

v = r* pi/70
If we take that r = 1 answer is
12-13
12-13=-1
Therefore the equation is false.
Rational,whole,integer,real