Question

The tangent to the curve y = 2x² – x + 1 is parallel to the line y = 3x + 9 at the point whose co-ordinates are :

• A. (–1, 5)
• B. (1, 2)
• C. (2, 7)
• D. (3, 16)

Answer 1

Answer: (B)

(1, 2)

Answer 2

y = 2x² –x + 1

$\frac{dy}{dx}$= 4x –1 = 3 Ž x = 1