Mathematics, 27.05.2021 19:30 shayravirgen30
Which statement correctly describes the effect of the parabola y=x^2+2x when it is changed to y=x^2+4x?
A: The parabola is translated to the right by two units.
B:The parabola is translated two units to the left and 4 units down.
C:The parabola is translated 1 unit to the left and 3 units down.
D: The parabola is vertically stretched by a factor of 2.
E: The parabola is vertically compressed by a factor of 2.
Answers: 3
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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
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Mathematics, 21.06.2019 21:00
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Which statement correctly describes the effect of the parabola y=x^2+2x when it is changed to y=x^2+...
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