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STatiana [176]
3 years ago
11

Determine whether y varies directly with x. If so, find the constant of variation and write the equation.

Mathematics
1 answer:
Masja [62]3 years ago
5 0

Answer:

Last option

Step-by-step explanation:

As per graph,

  • this is linear function
  • x=3 ⇒ y=1
  • x=-3 ⇒ y=-1
  • x=0 ⇒ y=0

Then y= 1/3 x

so answer is yes; k=1/3 and y=1/3x

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Answer:

y=x-3/4

Step-by-step explanation:

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3 years ago
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Write and solve an equation:

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3 years ago
To find how high school students feel about hot lunches, Adam walks to the nearest high When a=6 and b=22, c=33. If c varies dir
Delvig [45]

Answer:The equation that models the solution will be

33 = 22k / 6

Step-by-step explanation:

The two types of variation involved in this problem are direct variation and inverse variation.

In direct variation, when one item changes in the positive or negative direction, the other item also changes in the positive or negative direction.

In inverse variation, when one item changes in the positive or negative direction, the other item also changes in the negative or positive direction.

From the information given,

c varies directly with b

If we introduce a direct proportionality constant, k, then,

c = kb

c also varies inversely with a

If we introduce an inverse proportionality constant, k, then,

c = k/b

Therefore, c = kb / a

When a=6 , b=22 and c=33.

The equation that models the solution will be

33 = 22k / 6

8 0
3 years ago
Store A: $25 for a 45 minute lesson Store B: $30 for a 1 hour lesson Store C: $45 for a 1.5 hour lesson Store D: $80 for three 1
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Step-by-step explanation:


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Answer:

7.8 x 10^{-2}

Step-by-step explanation:

this is the real answer

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2 years ago
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