Random Scribe Thing
Intersection of curve and line
TOA CAH SOH
⬆ The tangent in TOA is not equal to the graph tangent.
Tangent in graphs represent the gradient in the graph. And also as it is the gradient (Rise/Run)
First Step: Solve both equations simultaneously.
From (2),y=2x-k -----(3)
Substitute (3) into (1)
If Z is an unknown constant, write it in Zx, not xZ as the constant is in front of the variable.
Edit: Note: Flip the inequality sign when you multiply by negative - .