Answer:
C
Step-by-step explanation:
Given x and y vary directly then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = 20 , y = 10 then
10 = 20k ( divide both sides by 20 )
= = k
y = x ← equation of variation → C
Answer:
9
Step-by-step explanation:
first integer = x
second integer = x+2
third integer = x+4
8x=3(x+2+x+4)-4
8x=3(2x+6)-4
8x=6x+18-4
8x=6x+14
2x=14
x=7
second integer=7+2=9
Answer:
The function (gof)(x) is;
Explanation:
Given the functions;
Solving for the function;
so, we have;
Therefore, the function (gof)(x) is;
The correct value is -10.
7 plus negative 10 equals negative 3.
Negative 3 times 4 equals -12.
Or, (7+-10=-3•4=-12)