f(a + 2) for f(x) = (3 + x) / (x - 3)
Substitute a + 2 for x in our equation
f(a + 2) = (3 + (a + 2)) / ((a + 2) - 3)
Combine like terms
f(a + 2) = (5 + a) / (a - 1).
This is as far as you can go.
C is the correct answer choice
To solve this, you see that the amount of mayo is double that of vinegar, so you can simply divide 16/2 to get 8 teaspoons of vinegar
For this case we have a direct variation of the form:
Where "k" is the constant of proportionality. To find it, we use the following data:
Substituting:
Clearing the value of k:
Thus, the direct variation is given by:
For
we have:
Answer:
The value of the direct variation for is: 
Y = x + 3
to test all of these, just use the visible x-coordinates on the grid and substitute them in the equation.
eg; y = (2) + 3 --> y = 5 . So the line would cross through (2,5)
