Worked solution
Practise the point-slope tangent equation
Find the equation of the tangent to the curve at the point .
CJC · Lecture · Self-Practice 2
Differentiate and substitute
The source prints only the final answer. Independently, , giving slope 2 at ; the curve gives there.
How did this part go?
Use the specified point
gives , matching the printed answer in both copies.
How did this part go?
Common mistakes
Use the derivative at x=1 as the slope, then use (1,4) to find the line’s constant term.
Solution notes
Both source copies visually compared; source wording, displayed results and pagination retained. Independently authored analytical explanations are distinguished from printed working.