Answer:
y = -0.85 + 0.09x; $49.82
Step-by-step explanation:
1. Calculate Σx, Σy, Σxy, and Σx²
The calculation is tedious but not difficult.

2. Calculate the coefficients in the regression equation


To two decimal places, the regression equation is
y = -0.85 + 0.09x
3. Prediction
If x = 563,
y = -0.85 + 0.09x = -0.85 + 0.09 × 563 = -0.85 + 50.67 = $49.82
(If we don't round the regression equation to two decimal places, the predicted value is $50.56.)
10q equals 7p because of the difference
Answer:
Step-by-step explanation:
Original price of the music box = $80
Price after 20% discount = Original price - discount
= 80 - 20% of 80
= 80 - 
= 80 - 16
= $64
Price after 40% discount = 80 - 40% of $80
= 80 - 32
= $48
Original price of A faux Ming vase = $60
Price after 20% discount = Original price - discount
= 60 - 20% of $60
= 60 - 12
= $48
Price after 40% discount = Original price - discount
= 60 - 40% of 60
= 60 - 24
= $36
10% of of $48 is an additional discount of $4.80.
Rocco's friend will have to pay $43.20 for the putter.
We have that
<span>f(x) = (3/2)*x + 4
case 1) for x=-8</span>f(-8) = (3/2)*(-8) + 4--------> -8
point (-8,-8)
case 2) for x=-4f(-4) = (3/2)*(-4) + 4--------> -2
point (-4,-2)
case 3) for x=-2f(-2) = (3/2)*(-2) + 4--------> 1
point (-2,1)
case 4) for x=0f(0) = (3/2)*(0) + 4--------> 4
point (0,4)
case 5) for x=2f(2) = (3/2)*(2) + 4--------> 7
point (2,7)
case 6) for x=4f(4) = (3/2)*(4) + 4--------> 10
point (4,10)
using a graph tool
see the attached figure