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Semmy [17]
3 years ago
15

The graph below represents the price of sending text messages using the services of a phone company. What is the constant of pro

portionality?
8
14
16
48

Mathematics
2 answers:
Eduardwww [97]3 years ago
5 0

Answer:

16

Step-by-step explanation:

The reason the answer is 8 is because if you see it is going up by 16's. If you see 0,16,32,48,64 all be 16's.

Misha Larkins [42]3 years ago
4 0

Answer:

8

Step-by-step explanation:

The equation is of the form

y = kx ← k is the constant of proportionality

To find k use the slope formula

k = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (2, 16) ← 2 points on the line

k = \frac{16-0}{2-0} = \frac{16}{2} = 8

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A parabola is graphed such that the axis of symmetry is x = 3. One of the x-intercepts is (5, 0). What is the other x-intercept?
Stells [14]

The axis of symmetry is the fold line that splits the parabola down the middle.

Now, since a parabola is symmetrical, every point, except the vertex, will have a mirror image of another point if we folded the parabola over the axis of symmetry.

So if we know the axis of symmetry is x = 3 and one of our points

has the coordinates (5, 0), the other point will have the coordinates (3, 0).

The axis of symmetry is always halfway between the x-intercepts.

6 0
3 years ago
Please help and hurry please thank you!
stellarik [79]

Answer:

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7 0
3 years ago
Decompose the mixed number 1 3/5
Alex787 [66]

Answer: 8/5

Step-by-step explanation:  1x5+3=8/5

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7 0
2 years ago
The LCD of theses fractions? <br> y/x + y/3+ y+1/y<br><br> Answers:<br> 3x+y<br> x+3+y<br> 3x+y
Dahasolnce [82]
3xy 

<span>y(3y)/3xy + y(xy)/3xy + (y+1)(3x)/3xy </span>

<span>NOW since all of the fractions have a denominator of 3xy, drop the denominators and solve using the numerators. </span>

<span>y(3y) + y(xy) + (y+1)(3x) </span>

<span>3y^2 + xy^2 + 3xy +3x </span>

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5 0
3 years ago
I need to show .y work for 132 × 3​
Lelechka [254]

Answer:

132 × 3 = 396

Step-by-step explanation:

132 3 × 2 = 6

<u>×</u><u> </u><u> </u><u>3</u> 3 × 3 = 9

396 3 × 1 = 3

7 0
3 years ago
Read 2 more answers
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