Answer:
See below
Step-by-step explanation:
Q1.
- In a function, every <u>output</u> value corresponds to exactly one <u>input
</u>
value.
<em>The words to be interchanged are underlined. The function as per definition has exactly one output for each input.</em>
Q2.
Part A
- Because it has 2 same input value for 2 different output values
Part B
- The two points are (4, -2) and (4, 2)
Answer:
A. 
Step-by-step explanation:
We have been given an equation of a line in point-slope form. We are asked to write our given equation in standard form.

Since we know that standard form of equation is:
, where, a, b and c are constants.
Let us multiply both sides of our given equation by 2.


Let us add 6 to both sides of our equation.


Let us subtract x from both sides of our equation.


Multiply both sides of our equation by -1.

Rearranging our equation we will get,

Therefore, the standard form of our given equation is
and option A is the correct choice.
Answer:

Step-by-step explanation:
Given


Required
Determine the average rate of change
Average rate is calculated as thus;

<em>In this case; b = 12 and a = 6</em>
Calculating f(12)



Calculating f(6)



Substitute 12 for b and 6 for a in 

Substitute values for f(6) and f(12)



Answer: y=15/x
For this problem you need to use trial and error.
For the first equation, 15-14 does equal 1, but 5-14 doesn’t equal 3. For the second equation, 15x15 doesn’t equal 1. For the third equation, 15+2 doesn’t equal 1. For the last equation, 15/15 is 1, 15/5 is 3, and so on. So, the last equation shows the relationship in the table.
:)