Question

His table represents the gallons of water, g, left in a hot tub after draining it for m minutes.

When graphed, all of the points in the table lie on the same line.


What is the slope and y-intercept of the line?


Drag and drop the slope and y-intercept into the corresponding boxes.


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Slope y-intercept

Minutes, m Gallons, g

0 480

5 320

10 160

15 0
plese hurry

Answer 1

• Slope is - 32,
• Y-intercept is 480

Explanation:

The y-intercept corresponds to number of gallons at zero minutes, this is the initial point (0, 480), so 480 is the y-intercept.

Take one more pair of values (5, 320) and find the slope.

• Slope = change in gallons / change in minutes
• Slope = (320 - 480)/5 = - 160/5 = - 32