Answer:

Step-by-step explanation:
Given


See attachment
Required
Find 
First, calculate 
--- angle on a straight line
So, we have:

Collect like terms


Next, calculate PQR

So, we have:

Collect like terms


So, PRO is calculated as:
--- angles in a triangle
So, we have:


Collect like terms


The equation of the line is given as

A straight line equation is given in the form

where

is the gradient and

is the y-interest.
We need to rearrange

to make

the subject.

⇒ from here we can read the gradient and the y-intercept. The gradient,

and

.
<span>A line that is parallel to

will have the same gradient,

but different y-intercept. One example of equation of a line that is parallel to

is

</span>
Answer:
B
Step-by-step explanation:
Answer:
C
Steps
The A equation is impossible (even if it looks like solvable with quadratic formula)
Have a good day