If a line crosses the y-axis at (0,8) and has a slope of -1/8,what is the equation of the line?
2 answers:
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Answer:
Step-by-step explanation:
Answer:
Volume =
Step-by-step explanation:
Given - Consider the solid S described below. The base of S is the triangular region with vertices (0, 0), (4, 0), and (0, 4). Cross-sections perpendicular to the x-axis are squares.
To find - Find the volume V of this solid.
Solution -
Given that,
The equation of the line with both x-intercept and y-intercept as 4 is -
⇒x + y = 4
⇒y = 4 - x
Now,
Volume =
where
A(x) is the area of general cross-section.
It is given that,
Cross-sections perpendicular to the x-axis are squares.
So,
A(x) = (4 - x)²
As solid lies between x = 0 and x = 4
So,
The Volume becomes
Volume =
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⇒Volume =
