Which point lies in the plane represented by the equation 2x + 7y + 3z = -25?

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NaanUnyr

Mathematics

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 Which point lies in the plane represented by the equation 2x + 7y + 3z = -25?
 
A(–3, 3, –2)
B(–6, –4, 5)
C(6, 1, –3)
D(6, 1, 2)
 What are the intercepts of the equation 2x+3/2y+3z=6
 
A(3, 0, 0), (0, 4, 0), (0, 0, 6)
B(3, 0, 0), (0, 4, 0), (0, 0, 2)
C(1, 0, 0), (0, 4, 0), (0, 0, 3)
D (4, 0, 0), (0, 3, 0), (0, 0, 6)

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Explanation & Answer

First question: The answer is B since (2 * -6) + (7 * -4) + (3 * 5) = -25

Second question: This answer is B since (2 * 3) + 0 + 0 = 6, (3/2)*4 + 0 + 0 = 3 * 2 = 6 and (3 * 2) + 0 + 0 = 6


Anonymous
Excellent resource! Really helped me get the gist of things.

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