Question

The line y = x + 1 is a tangent to the curve y² = 4x at the point

Options

• (-1, 2)

• (1, 2)

• (1, -2)

• (2, 1)

Answer 1

(1, 2)

Explanation:

as slope of line y = x + 1 is 1 and `"dy"/"dx" = 2/"y" = 1`

`=> "y" = 2 and "x" = 1.`

Therefore point is (1, 2).