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miss Akunina [59]
3 years ago
11

Over which intervals is the function decreasing?

Mathematics
1 answer:
yarga [219]3 years ago
6 0

Answer:

Step-by-step explanation:

The graph (and thus the function) is decreasing on (-5, infinity).

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Please help and answer it in a sentence :)
Alexandra [31]

Answer:

x = $1 & y = $2.

Each doughnut cost $1 and hot chocolate cost $2.

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2 years ago
Please answer this question​
Anettt [7]

Answer:

Step-by-step explanation:

2)f(x) = 2x² +4x - 3    

a = 2 ; b = 4 ; c = -3

1) Put x = -1 in the equation

f(x) = 2*(-1)² + 4*(-1) -3 = 2 - 4 -3 = -5

Vertex = (-1,-5)

2) Upward

3) Minimum

4) axis of symmetry = -b/2a = -4/2*2=-4/4= -1

x = -1

5) domain: all real numbers  (-∞ ,∞)

Range : y ≥ -5 ; [-5 , ∞)

3) f(x) = 3x² - 6x + 4

Vertex : (1,1)

Opening : upward

Minimum

Axis of symmetry: x = 1

Domain: all real numbers

Range: y ≥ 1 ; [1, ∞)

4)f(x) = -x² - 2x - 3

a) Vertex:  f(x) = -(-1)² - 2*(-1) - 3 = -1 + 2 - 3 = -2

Vertex( -1,-2)

b) downward

c) Maximum

d) Axis of symmetry: x = 2/-2 = -1  

x = -1

e) Domain: all real numbers

Range: y ≤ -2 ; (-∞ , -2]

5)f(x) = 2(x -2)²

a) Vertex: (2, 0)

b) Opening: upward

c) Minimum

d) x = 2

e)Domain: all real numbers

Range: y ≥ 0 ; [0,∞)

4 0
3 years ago
Is y=4x proportional or non-proportional
jolli1 [7]

Answer:

No its nonportional

Step-by-step explanation:

proportional relationship doesn't have any operation between the “k” and “x” where K is the unit rate or the constant of proportionality.

4 0
3 years ago
Read 2 more answers
(8+k³-6k⁴)+(4-3k⁴+8k²)​
ANEK [815]

Answer:

12 + 8k² + k³ - 9k⁴

Step-by-step explanation:

(8 + k³ - 6k⁴) + (4 - 3k⁴ + 8k²)

8 + k³ - 6k⁴ + 4 - 3k⁴ + 8k²

(8 + 4) + (8k²) + (k³) + (-6k⁴ -3k⁴)

(12) + (8k²) + (k³) + (-9k⁴)

12 + 8k² + k³ - 9k⁴

6 0
3 years ago
For babysitting Nicole charges a flat fee of $7, plus $12 per hour. Write and equation for the cost, C, after h hours of babysit
natta225 [31]

Answer:

C=12h+7

Step-by-step explanation:

The total cost = 7 (flat rate) + 12h (12/hour)

7 0
3 years ago
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