Question

Melt Away Weight Loss uses the regression equation

y = 1.8x + 1.2 to predict the weight loss of their clients.
In the equation:
x = the number of weeks on a diet
and
y = the total number of pounds lost.
Using the equation, how much weight did Steve lose in 4 weeks?

Answer 1

B) 8.4 pounds

Explanation:

Answer 2

In our equation, the Y value is the dependent variable and the X is the independent variable. The amount of pounds lost depends on the number weeks on a diet. To get the actual pounds Steve was able to lose in 4 weeks, we have:

Y = 1.8x + 1.2
Y = 1.8(4) + 1.2
Y = 8.4 pounds