Answer:
<u>k = 9</u>
<u>y = 9x</u>
Step-by-step explanation:
Variation Constant Formula :
- k = y/x
- k = 9/1
- <u>k = 9</u>
<u></u>
Equation :
Answer:
no solution
Step-by-step explanation:
3+6b= 6b +5
subtract 6b from both sides
3=5
since three can't equal five there is no solution
Answer:
x + 3
Step-by-step explanation:
Answer
y = 2x +8
Step-by-step explanation:
Add 2
x to both sides of the first equation to get:
y
=
8
+
2
x
Divide both sides of the second equation by 2 to get:
y
=
8
+
2
x
The two equations determine the same conditions on xy so this system of equations has an infinite number of solutions, namely all points on the line:
y
=
2
x
+
8
Dx(xy +y^2 = 1)
Dx(xy) +Dx(y^2) = Dx(1)
(x'y + xy') +(2y y') = (0)
x'y + y'(x +2y) = 0
y'(x +2y) = -x'y
y' = -x'y/(x +2y)