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3 years ago

For the graph below, what should the domain be so that the function is at least 200?

Mathematics

2 answers:

adoni [48]3 years ago

8 0

Answer: −5 ≤ x ≤ 20

Step-by-step explanation:

sveta [45]3 years ago

7 0

Y = 2x² + 30x + 200
y = 2(x² + 15x + 100)

x² = x*x
100 ⇒ 1 x 100 ; 2 x 50 ; 4 x 25 ; 5 x 20 ; 10 x 10

200 = 2x² + 30x + 200
0 = 2x² + 30x + 200 - 200
0 = 2x² + 30x + 0
0 = 2(x² + 15x + ?)

<span>−5 ≤ x ≤ 20</span>

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2 years ago

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#1 ⬇️

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