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VikaD [51]
3 years ago
5

Please help will mark brainliest!!!

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
8 0
Correct answers
1). first option
4) last option
------------------

kumpel [21]3 years ago
3 0
1) true
2) false
because 3m*-6m=-18m2 not -6m
3) false
because 6m2*3m=18m3 not 18m
4) true

Hope this helps!! :)
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Find an equation of the parabola with vertex (-1, -5) and directrix x=-7.
Natalka [10]

Answer:

Base on the vertex (h, k) and the distance p between vertex and directrix, the standard form of parabola is written as:

(x – h)^2 = 4*p(y – k)

We have (-1, -5) as vertex.

=> (x + 1)^2 = 4*p(y + 5)

Now, we find p:

The distance between (-1, -5) and x = -7 is calculated by:

|-1 -(-7)| = |6| = 6

=> (x + 1)^2 = 4*6(y + 5)

=> (x + 1)^2 = 24(y + 5)

Hope this helps!

:)

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MakcuM [25]

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