Answer
y=4x-2
Work Step by Step
f(x)=x^2+2x-1 point (1,2)
f'(x)=2x+2
f'(1)=2(1)+2=4
Apply to straight line equation (y-y1)=m(x-x1)
y-2=4(x-1)
y-2=4x-4
y=4x-2
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.