1. y=7-3x
4x+2(7-3x)=16
4x+14-6x=16
-2x=2
x=-1
-3+y=7
y=10
(-1,10)
2. x=2y
2(2y)+2y=4
4y+2y=4
6y=4
y=2/3
x-2(2/3)=0
x-4/3=0
x=4/3
(4/3,2/3)
Answer:
rom the relation for linear regression formula, Y = b·X + a, we have ;
For car 1
ΣXY = 102780
(ΣX)² = 36
ΣX = 6
ΣY = 52390
ΣX² = 14
N = 3
b = -1000
a = 19463
Y = -1000×X + 19463
For Car 2
ΣXY = 102539.8
(ΣX)² = 36
ΣX = 6
ΣY = 52346.6
ΣX² = 14
N = 3 .
b = -1076.7
a = 19602
Y = -1076.7×X + 19602
Step-by-step explanation:
part B ^
Hello there!
Answer:
The slope is 9, and the y-intercept is –2
Step-by-step explanation:
The equation is y = 9x - 2
This follows the equation y = mx + b
Where as:
m = slope
b = y-intercept
When you know this, you would figure out that 9 is in the same place as m, and -2 is in the same place as b.
The y-intercept would not be a positive 2 because when there's a minus sign next to the number in the y-intercept spot, then you would have to bring that over to the number. We can also say the minus sign belongs to the 2, making it a -2.
With the information we know now, we can say that the slope of the equation is 9, and the y-intercept would be -2.
Therefore, giving your answer as "The slope is 9, and the y-intercept is –2"
Renee earns a 15% commission on her $200 sales.
0.15 * 200 = $30
So, she earns 30 dollars from commission.
She also earns $80 a week, which makes a total of 80 + 30 = $110
Hence, the answer is $110
Answer:
C. Graph c
Step-by-step explanation:
I got it correct
