Adding to "undo" subtraction and subtracting to "undo" addition are both examples of using inverse operations to solve equations
1 answer:
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Answer:
Y'=3xy-3x-12
Y'=F(-2,-1)=0
Step-by-step explanation:
The function of the equation at the point (-2,-1)
is where the equation make the function go to zero:
Y'=3xy-3x-12
Y'=F(-2,-1)=[3(-2)(-1)]-[3(-1)]-12
F(-2,-1)=[6]-[-6]-12
F(-2,-1)=6+6-12
F(-2,-1)=12-12
F(-2,-1)=0
Solving for y
3xy-3x-12=0
y=4/x+x
Making y=0
So the values make the function go to zero
Answer:
Tom will need gallons of fruit drink.
Step-by-step explanation:
Hint- This question can be solved by unitary method.
Tom has a recipe for punch that calls for gallon of fruit drink.
i.e for 1 batch of the punch Tom needs gallon of fruit drink.
For batch of the punch Tom needs
gallons of fruit drink.
Therefore, Tom will need gallons of fruit drink.