Author note — to cover (Higher)

Higher page, per the A19 braces on linear/quadratic pairs. Substitute the linear equation into forms like y = x² + 3x or x² + y² = r², solve the quadratic, and pair each x with its own y, presenting answers as coordinate pairs. The circle-geometry reading of this lives on line-meets-circle. (A19)

• Fluency — direct questions on a linear and a quadratic equation together, limited to this lesson's stated scope (4 questions).
• Application — use the same skill in unfamiliar or contextual questions without introducing a later method (4 questions).
• Check — questions built around the exclusions and likely misconceptions named in the lesson brief (4 questions).