Answer:
The average slope is 8.
Step-by-step explanation:
Let <em>f</em> be defined on the closed interval [a, b]. The average slope of <em>f </em>between a and b is the quotient
average slope = 
To find the average slope of the function 
on the interval [-1, 3] you have to evaluate your function in the interval and then divide by the interval.
So,
The average slope is 
Answer:
(x,y) -> (-y,x), second option.
Step-by-step explanation:
Rotation of 90 degrees about the origin:
The rule for a rotation of a point (x,y) 90 degrees about the origin is given by:
(x,y) -> (-y,x)
This is that the question asks, and so, this is the answer, which is the second option.
Let numbers of books be 'b' and numbers of CDs be 'c'
We can set up two equations:
Equation [1] ⇒
Equation [2] ⇒
We are solving for the number of books and the number of CDs bought
When we have two equations in terms of two different variables;
and
, that we need to solve, then this becomes a simultaneous equation problem.
First, rearrange Equation [1] to make either
or
the subject:
Then we substitute
into Equation [2]
Now we know the value of
which is
, substitute this value into
we have
Answer:
Numbers of books = 13
Numbers of CDs = 7
Answer:
Step-by-step explanation:
