Answer: OPTION B
Step-by-step explanation:
First it is importanty definition, a relation is a function if and only if each input value has one and only one output value.
The input values are the x-values and the output values are the y-values.
Therefore, "y" is the Dependend variable and "x" is the Independent variable.
Knowing the above, you can understand the definition of "Domain" and "Range".
The Domain is defined as the set of all the possible values of "x" or the Independent variable
The Range is defined as the set of all the possible values of "y" or the Dependent variable.
Therefore, you can conclude that the correct answer is the given in the Option B.
Answer:
The slope is -1
Step-by-step explanation:

Explanation:
Since we have given that
The prices of three t-shirts styles i.e $24, $30, $36 with their probability is given by

As we know that,


Now,

and

So,

So, the expected value of a t-shirt = $31.
Answer:
log4x+log4(x-6)=2
place under single log using multiplication rule
log4(x(x-6))=2
convert to exponential form:(base(4) raised to log of number(2)=number(x(x-6)
4^2=x(x-6)
16=x^2-6x
x^2-6x-16=0
(x-8)(x+2)=0
x=8
or
x=-2 (reject, x>0)
Step-by-step explanation: