Answer:
Equation is W = -2t+186
It will take 23 weeks to achieve the goal.
Slope = -2 pounds per week
Explanation:
Here current Weight is 186 pounds
and her goal is to weigh 140 pounds
she can safely lose 2 pounds per week which is the slope
for t =0 , W =186 pounds (Y intercept )
slope = 2 pounds per week
since its decreasing therefore its negative
W = -2t+186 is the equation
To achieve the desired goal W = 140
plugging W = 140 and solving for t
140 = -2t+186
2t = 186-140
2t = 46
t = 23
It will take 23 weeks to achieve the goal.
Slope = -2 pounds per week