Question

A line passes through the points (5,24) and (6,25). Write a linear function rule in terms of x and y for this line.

The linear function rule is y=

Answer 1

Y=mx + c

I) 24=5m+c
II) 25=6m+c

II - I:
1 = m

m in I:
24=5+c |-5
c=19

c,m in y=mx+c

Y=x+19