Answer:
y = - 0.833 + 29.5
y = 17
Step-by-step explanation:
Drawing a best fit line through the data points:
The approximate regression model would have an intercept of about 29.5
The slope = Rise / Run = (y2 - y1) / (x2 - x1)
The slope = (5 - 25) / (27 - 3) = 20 / 24 = -0.8333
The regression equation is thus :
y = mx + c
m = slope ; c = intercept
y = - 0.833 + 29.5
B)
x = 15
y = - 0.833(15) + 29.5
y = -12.5 + 29.5
y = 17
Approximately 17 hours watching TV
The coefficient of ALL variables is the number in front of the variable, which here its -9
<h2>SOLVING</h2>
What's the equation with a slope of -4 that goes through (-1,1)? find it
The equation used, here is 
.
| simplify after putting in the information given
The drawing's scale factor is
Actual Dimensions:Drawing Measurements
= 36:1
Regardless of the sign of
, we have
(never negative). But multiplying by -1 makes it negative.
On the other hand,
which can never be negative for real
.
