For what value of “b” will the line y=-2x+b be tangent to the parabola y=3x^2+4x-1 ?
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For what value of “b” will the line y=-2x+b be tangent to the parabola y=3x^2+4x-1 ?
1. Equate both equations.
2. Use the fact that for the new curve that you got to have equal roots,
Now, can you tell me why is that so, since you didn't posted your attempt?
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