My answer is: D. <span>(6,0,0)
Given:
</span><span> 7x +2y +3z =42
I assumed that the format in the given choices is (x,y,z). So, I substituted each number to its corresponding variable.
A. </span>(14,0,0) → 7(14) +2(0) +3(0) = 42 → 98 + 0 + 0 ≠ 42 NOT THE ANSWER<span>
B. (7,0,0) </span>→ 7(7) +2(0) +3(0) = 42 → 49 + 0 + 0 ≠ 42 NOT THE ANSWER<span>
C. (21,0,0) </span>→ 7(21) +2(0) +3(0) = 42 → 147 + 0 + 0 ≠ 42 NOT THE ANSWER<span>
D. (6,0,0) </span>→ 7(6) +2(0) +3(0) = 42 → 42 + 0 + 0 = 42 CORRECT ANSWER.
<span>The ordered triples indicated where the plane cuts the x-axis for this equation is D. (6,0,0). </span>
Dot product<span> of two </span>orthogonal<span> vectors is always zero.
So let's do dot product:
v</span>·w = (8i + 7j) · (6i - j) = (8)(6) + (7)(-1) = 41 which is not zero
So v and w are not orthogonal.
Hope this helps.
Answer: 4+2=6
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Answer:
Step-by-step explanation:
Slope is 2
solve into Ax+by=C
Y-y1=m(x-x1)
Y-(-4) = 2(x - (-5))
Y+4=2x+10
Y-2x =6
(0,6)
(-3,0)
