Given: Equation of the curve 
……….(i)
Slope of the tangent at point 
is 
……….(ii)
Slope of the line 
is 
……….(iii)
From eq. (ii) and (iii), 
From eq. (i), 
Therefore, required point is (1, 2).
Therefore, option (A) is correct.
Choose the correct answer: The line y = x + 1 is a tangent to the curve y^ 2 = 4x at the point (A) (1, 2) (B) (2, 1) (C) (1, – 2) (D) (– 1, 2)
Choose the correct answer: The line y = x + 1 is a tangent to the curve y^ 2 = 4x at the point (A) (1, 2) (B) (2, 1) (C) (1, – 2) (D) (– 1, 2)