Solution:
Question 1:
we are given that
A football player who runs 5yds/sec and starts on the 25 yard line.
So here rate is 5yds/sec
and 25 yards is the y- intercept.
Hence it can be written as

Question 2:
Based on the given equations, which one represents the greatest rate?
As we know in the standard form of equation of starlight line

m represents the rate or gradient.
As we can observe from the given options
has the greatest gradient.
Hence the correct option is
