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miss Akunina [59]
3 years ago
10

Is this true or false? The following graph represents a proportional relationship

Mathematics
2 answers:
Flauer [41]3 years ago
6 0

Answer:

True

Step-by-step explanation:

Ipatiy [6.2K]3 years ago
5 0

Answer:

False

Step-by-step explanation:

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Pplllleeaaassseeeee hellppppp meeee<br> this is easy but i dont get it
AURORKA [14]

Answer:

choice 1) -6 and choice 2) -5

Step-by-step explanation:

choice 1)

-(1/2)-6)+6 > 8

9 > 8

choice 2)

-(1/2)(-5)+6 > 8

8 1/2 > 8

4 0
2 years ago
What is the range of the function f(x) = 3x2 + 6x - 8?
V125BC [204]

Answer:

  {y | y ≥ -11 }

Step-by-step explanation:

To answer a question like this, it is often helpful to graph the function or to rewrite it to vertex form.

  f(x) = 3x^2 +6x -8

  f(x) = 3(x^2 +2x) -8 . . . . factor the leading coefficient from x terms

  f(x) = 3(x^2 +2x +1) -8 -3(1) . . . . complete the square*

  f(x) = 3(x +1)^2 -11

The form of this equation tells you that the graph is a parabola that opens upward. Its vertex is (-1, -11), so the minimum value is -11. The range is the vertical extent of the function values, so goes upward from -11:

  y ≥ -11

_____

* Vertex form is ...

  f(x) = a(x -h)^2 +k

where "a" is the vertical scale factor and (h, k) is the vertex. When "a" is positive, the parabola opens upward; when it is negative, the parabola opens downward.

The square is completed by adding the square of half the x-coefficient inside parentheses, and subtracting the equivalent amount outside parentheses. Here, we had 2x inside parentheses, so we added (2/2)^2 = 1 inside and -3(1) outside, because "a" was 3.

_____

Brainly provides tools for properly rendering math symbols. 2-11 is not the same as ≥-11.

7 0
3 years ago
George weighs twice as much as his little brother Sam.
german
74 pounds because sam weight 37
37x2 = 74
8 0
3 years ago
Read 2 more answers
General terms of a sequence
MatroZZZ [7]
(2n-1) /(n+9)
hope it can help u
5 0
3 years ago
En un partido de baloncesto, los máximos anotadores han sido Juan, Jorge y Mario. Juan ha logrado 19 puntos. Jorge 5 puntos más
Fantom [35]

Answer:

31

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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