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Give the tangent line to the parabola y = x² touching it at (1, 1).
Ay = x
By = 2x − 1
Cy = 2x + 1
Dy = 2x
Answer & Solution
Correct answer: B. y = 2x − 1
The slope is 2x = 2 at x = 1, so y − 1 = 2(x − 1), which is y = 2x − 1.
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