11/21 would be the answer
Answer:
The second one because q goes with y r goes with z and s goes with x
Step-by-step explanation:
Answer:

Step-by-step explanation:

(x₁, y₁) is the 1st coordinate while (x₂, y₂) is the 2nd coordinate.
Gradient of the line



Isolating the x^2 is the simplest way. it would only be three steps.