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Pachacha [2.7K]
3 years ago
5

Which statements are true about the graph of the function f(x) = 6x – 4 + x2?

Mathematics
1 answer:
kaheart [24]3 years ago
3 0
Write the function as
f(x) = x² + 6x - 4

Note that
x² + 6x = (x + 3)² - 9

Therefore
f(x) = (x  3)² - 9 - 4
      = (x + 3)² - 13

The vertex is at (-3, -13)., and the curve opens upward.
The axis of symmetry is x = -3.

Answer:
The vertex of the function is (-3, 13).
The graph increases over the interval (-3, -∞)


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Usimov [2.4K]

Answer:

the angle of elevation is 12.56°

Step-by-step explanation:

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we see that it has (angle, hypotenuse, opposite)

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a: adjacent

o: opposite

h: hypotenuse

sin α = o/h

cos α= a/h

tan α = o/a

we choose the one with opposite and hypotenuse

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3 0
3 years ago
Picture attachment is below
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D

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5 0
3 years ago
Benjamin writes an expression for the sum of 1 cubed, 2 cubed, and 3 cubed -- What is the value of the expression? options---
saw5 [17]

Answer:

36

Step-by-step explanation:

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7 0
3 years ago
Find the length of LK
ehidna [41]
Since JN = NK, this means that JK has been split into two equal pieces

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In summary,

LK = 28
3 0
3 years ago
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