Answer:
The depth of the water is increasing by <u>2</u> feet each minute
Step-by-step explanation:
y-axis represents the depth of the water (in feet) and x-axis represents time (in minutes)
To answer the question we need to find the slope of the line. Given that the line goes through points (2, 4) and (4, 8), its slope is:
slope = (y2 - y1)/(x2 - x1) = (8 - 4)/(4 - 2) = 2
The two equations are vertical angles, which mean they are equal.
Set each equation to equal each other and solve for x.
3x-3 = 6(x-10)
Simplify the right side:
3x-3 = 6x-60
Subtract 3x from each side:
-3 = 3x - 60
Add 60 to each side:
57 = 3x
Divide both sides by 3:
x = 57 / 3
x = 19
-35
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