Answer:
C. y +3 = x +3
Step-by-step explanation:
We need to find in below option x has direct variation with y.
We solve for each;
A. 
From above equation we can state that 2 times y is equal to 7 less than 3 times of x.
Hence it doesn't represent direct variation.
B. 
Solving above expression we get;

From above equation we can state that y is equal to 10 more than x.
Hence it doesn't represent direct variation.
C. 
Solving above expression we get;

From above equation we can state that y is equal to x.
Hence it represent direct variation.
D. 
Solving above expression we get;

From above equation we can state that 4 times y is equal to 2 less than 4 times of x.
Hence it doesn't represent direct variation.
Hence the Answer which represent direct variation of x and y is,
C. 
Answer:
Step-by-step explanation:
In the question it’s given that : y=|x| => even if x will be a negative number,y will be positive.
1) -3 ; 3 ; (-3,3)
2) -2 ; 2 ; (-2,2)
3) -1 ; 1 ; (-1,1)
4) 0 ; 0 ; (0,0)
5) 1 ; 1 ; (1,1)
6) 2 ; 2 ; (2,2)
7) 3 ; 3 ; (3,3)
X - tickets
----------------------------------
167x + 19x + 16 = 1132
186x + 16 = 1132
186x = 1132 - 16
186x = 1116
x = 1116 : 186
x = 6 tickets (answer).
Answer:
Step-by-step explanation:
Given that a company fixed costs are 400 dollars
and variable cost =
per unit and x the no of units produced
Selling price =
per unit
a) Break even units
At break even units selling price = variable cost

Break even units = 76
b) Revenue = Sales - total costs
= 
Use derivative test to get max revenue
R'(x) = 
R"(X) <0
So maximum when I derivative =0 or when

x=38
c) price when x =38 is
