Answer: it is not a function
Step-by-step explanation:
Given :
= 3x + 1
The first thing is to make y the subject of the formula, that means we will take the square root of both sides
y = 
since y = , the the value of y could be positive or negative.
For example , 
= ± 2 , since -2 x -2 will also give + 4
For y = to be a function , there must be a unique value for y for each value of x , but this is not the case as y could be positive or negative for a single value of x , so it is not a function.
Answer:
(x, y) = (2, 1)
Step-by-step explanation:
Adding the two equations gives ...
2y = 2
y = 1 . . . . . divide by 2
Subtracting the second equation from the first gives ...
0 = 6x -12
0 = x -2 . . . . divide by 6
2 = x
The solution is (x, y) = (2, 1).
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The attached graph verifies this solution.
Answer:
14 students
Step-by-step explanation:
Its simple, you just divide 112 by 8.
