Ayoung sumo wrestler decided to go on a diet yo go on a special high protein diet to gain weight rapidly. he started at 90 kilograms and gained weight at a constant rate. after 8 months ,he weighed 138 kilograms. let w(t) denote the sumo wrestlers w as a function of time. write the functions formula

; you first need to find out how much he'll gain in one month. If he went from 90 kg to 138, you should subtract . This means he gains 48 in 8 months. Next, you should divide , so he gains 6 kg/month. Since he starts out with 90 kg, 90 is the y-intercept.  will equal the time in months, and the slope is -- or .