MATHEMATICS MIDDLE SCHOOL

A pool has some initial amount of water in it. Then it starts being filled so the water level rises at a rate of 666 centimeters per minute. After 202020 minutes, the water level is 220220220 centimeters. Graph the relationship between the pool's water level (in centimeters) and time (in minutes).

Answers

Answer 1
Answer:

Answer:

y=6x+100

The graph is drawn below.

Step-by-step explanation:

Let the minutes passed be x and height of water level be y cm.

Given:

Rate of rise of water level, m = 6\textrm{ cm/min}

When x=20\textrm{ min},y=220\textrm{ cm}

Therefore, the relationship can be expressed using the point-slope form of an equation if a line.

The point-slope form is given as:

y-y_(1)=m(x-x_(1))

Here, m=6,x_(1)=20,y_(1)=220

Therefore, the relationship is given as:

y-220=6(x-20)\ny-220=6x-120\ny=6x-120+220\ny=6x+100

Therefore, the relationship between the pool's water level (in centimeters) and time (in minutes) isy=6x+100.

The graph is shown below.
Answer 2
Answer:

Answer: Points are (20, 220) and (15, 190)

Step-by-step explanation: I had the same quiz question.

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Answers

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Answers

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Answers

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