Answer:
, 
, 
Step-by-step explanation:
In the case of parametric equations, the slope of the curve is equal to:

Where
and
are the first derivatives of
and
regarding
. Let be
and
, their first derivatives are found:
and 
Thus, equation for the slope is:


If
, then:


Tangent is positive at 1st quadrant and is a function with a periodicity of
, the set of solutions are:
, 
, 
The answer is between Day 3 and Day 4. If you look at the slope of the line between Day 3 and Day 4, you can see that it's horizontal, whereas the other slopes are very steep. Therefore, the answer is between Day 3 and Day 4.
Answer:
-1
2
7
Step-by-step explanation:
4 - 5 = -1
7 - 5 = 2
12 - 5 = 7
Step 1.)
7x + 7 * 4.
We need to expand this term by multiplying a term and an expression.
The following product distributive property will be used:
A(B+C) = AB + AC
Numerical factors in this term have been multiplied.
In our example, the resulting expression will consist of 2 terms:
the first term is a product of 7 and x
the second term is a product of 7 and 4.
7x + (7 * 4)
Numerical factors in this term have been multiplied.
Which equals:
7x + 28
Hope you understand this and it helps. Have a great evening!