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Aleksandr [31]
3 years ago
11

A cell phone plan has a monthly cost that is shown in the table below. What is the correct statement regarding the average rate

of change
during the 40-minute time of talk? (1 point)

Mathematics
1 answer:
BARSIC [14]3 years ago
4 0

Answer:

Second from top...

The average rate of change is $0.07, meaning that for each minute of talk time, the monthly bill increases by $0.07.

Step-by-step explanation:

Pick any two points and calculate the slope which will represent the rate of change:

  (Minutes, Cost)

  (0, 9.95)

  (10, 10.65)

Rate of change:

slope m = (y₂ - y₁) / (x₂ - x₁)

             = (10.65 - 9.95) / (10 - 0)

             = 0.7 / 10

             = 0.07

y is cost

m is rate of change

x is minute(s) use

b is fixed monthly cost regardless if any minutes is used

  y = mx + b

  y = .07x + 9.95

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answers: 
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Step-by-step explanation:

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8 0
2 years ago
if you are asked to solve a system of equations in which there is no linear equation to start with, you can sometimes begin by i
DENIUS [597]

<u>Answer:</u>

The correct answer option is: True.

<u>Step-by-step explanation:</u>

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For example, for the given non linear equation, start by dividing both sides by coefficient of the variable.

Once you do that and isolate a variable, continue solving by substituting that variable into the other equation.

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Answer:

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Step-by-step explanation:

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I hope this helps!

8 0
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