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?
A) 7.5 pounds
B) 8.4 pounds
C) 9.6 pounds
D) 10 pounds

Answer 1

B. 8.4

Explanation:

y=1.8x+1.2

x= weeks

y= pounds lost

Sub in for weeks

y=1.8(4)+1.2

y=8.4