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zhenek [66]
3 years ago
7

Write the equation of each graph. Will give Brainliest to correct answer!

Mathematics
1 answer:
Arada [10]3 years ago
8 0

Answer:

a. y = -(x+1)^2+4

b. y = \frac{1}{2} (x-2)^2-3

Step-by-step explanation:

a. Vertex is (-1, 4)

so you get

y = a(x+1)^2+4

plug in (1, 0) and get the a value

0 = a(1+1)^2+4\\0 = a*2^2 + 4\\0 = 4a + 4\\-4 = 4a\\a = -1

final eq:

y = -(x+1)^2+4

b. Vertex is (2, -3)

so you get

y = a(x-2)^2-3

plug in (0, -1) and get the a value

-1 = a(0-2)^2-3\\-1 = a*(-2)^2 -3\\-1 = 4a -3\\2 = 4a\\a = \frac{1}{2}

final eq:

y = \frac{1}{2} (x-2)^2-3

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