Please help me!!!!! Show your work 45-45-90 method <3

Mathematics

2 answers:

aivan3 [116]3 years ago

7 0

Answer:

hope it helps and u understand

check the steps in picture attached

saul85 [17]3 years ago

5 0

Pic attached shdjjdjdjrjrjrjrjrirititititt

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WRITE THE EQUATION OF THE PARABOLA with a directrix of y=1 and a focus of (0,-1).

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Answer:

-4y = x², or y = - x²/4, or y = -(1/4)x²

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Because the focus is beneath the directrix, this vertical parabola opens down. The general formula is 4py = x².

Because the distance between focus and directrix is 2 units, p = -1 here. The negative sign shows that the parabola opens down.

4py = x² becomes 4(-1)y = x², or -4y = x², or y = - x²/4

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