Answer
a.5
b.(1,10)(2,15)(3,20)(4,25)(5,30)(6,35)(7,40)(8,45)
c.slope=5
Work Step by Step
A.The range increases by 5 each time.
B.The domains are (1,2,3,4,5,6,7,8).The range is (10,15,20,25,30,35,40,45).
C.Use the point-slope formula to find the slope $\frac{10-15}{1-2}$= 5 ,$\frac{15-20}{2-3}$=5.
Graph:
