Answer: x=-7/2 y=29/2
Steps:
Use the elimination method
Multiply -3x+y=4 by 5 to make the coefficient next to the y in both equations the same
5(-3x+y=4)
-15x+5y=20
Then, subtract to eliminate the y
-15x+5y=20
- -9x+5y=-1
= -6x=21
Divide both sides by -6 to isolate x
= x= -7/2
Next substitute -7/2 into x in one of the equations
-3(-7/2)+y=4
-21/2+y=4
Add 21/2 from both sides to isolate y
y=29/2
Volume of the prism is 80
Set it up as a proportion.
x/9 = 1/3
1/3 = 3/9
x/9 = 3/9
x = 3
The correlation coefficient is -0.2907 or about -0.29
Answer:
y-1= -4(x-(-3))
y minus 1 = negative 4 left-bracket x minus (negative 3) right-bracket
Step-by-step explanation:
The formula for point slope form is written: . Now we fill in our know information. m=-4 (because that is the slope), =1 (It is the y value in the ordered pair), = -3 (It is the x value in the ordered pair).
y-1=-4(x- (-3))