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The scatter plot shows the amount of water in a tank as measured every few minutes.

The initial amount of water in the tank was

__ gallons. The line of best fit shows that about

___ gallons of heater lost per minute. The tank will be empty in about __ minutes.



first __ options: 0,20,100,120


second __ options: 4/3, 3/4, 2/3, 1/2


third __ options: 0, 60, 80, 90

Sagot :

raphealnwobi

he initial amount of water in the tank was 120 gallons, 1.33 gallons of water is lost per minute and the tank would be empty in 90 minutes.

What is a linear equation?

A linear equation is in the form:

y = mx + b

Where m  is the rate of change (slope) and b is the initial value of y.

Let y represent the amount of water in tank after x minutes.

From the graph, the y intercept is at 120 gallons. This means that the initial amount of water in the tank was 120 gallons,

The line passes through (0, 120) and (30, 80):

slope = (80 - 120) / (30 - 0) = -1.33

1.33 gallons of water is lost per minute.

The equation of the line is y = -1.33x + 120

For y = 0:

0 = -1.33x + 1200

x = 90

The tank would be empty in 90 minutes.

Find out more on linear equation at: https://brainly.com/question/14323743

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