Question 507865
s = sugar consumption
s = (1/2)*t + 30
where, t is the number of years since 1975.
.
1991 - 1975 = 16
.
s = (1/2)*16 + 30
s = 8 + 30
s = 38
.
{{{graph(500,500,-5,20,-5,40,1/2*x+30)}}}