Picture doesn’t show up!!
Wow I don't get it either but my guess would be 9,6...sorry....
Answer:
conio
Step-by-step explanation:
What you have written down is correct, x=-3
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>