Problema Solution
The average number of cigars smoked by children in some country continues to decline. For years 1997-2006, the equation y=-49.4x + 1756.8 approximates this data. Hear, x is the number of years 1997 and y is the annual number of cigars smoked.
If the trend continues, find the year which the average annual number of cigars smoked is zero. to do this let y=zero and solve for x.
In ________, the average annual number of cigar smoked will be zero.
Answer provided by our tutors
y=-49.4x+1756.8 given equation
0=-49.4x+1756.8 y=0 and solve
-1756.8=-49.4x move addition over to the other side, sign change left number becomes positive
x=35.56 divide 49.4 into 1756.8 to get x
add x to 1997 to get 2042 when number of smoked cigars equals zero