## Algebra 1

a) Please see the graph created in Microsoft Excel. b) $m= (164-44)/(40-15)$ $m = 120/25$ $m= 4.8$ $y=mx+b$ $44 = 15*4.8+b$ $44 = 72 + b$ $44-72 = 72+b-72$ $-28 = b$ $y=4.8x-28$