Answer:
yes alby is correct
Step-by-step explanation:
You have:
2r

6r-21
then move the 6r over to the left and you end up wtih
-4r

-21
Then you divide by -4 and when you do you must flip the inequality so your answer would be
r

21/4
For this case we have an equation of a line of the form:

Where:
m: It's the slope
b: It is the cutoff point with the y axis
We have the equation:

So, we have:

Answer:
The slope is

The method to change it to the form

is to complete the square.
It's 3 because 4×3=12 add 2 and it equals 14