For what value of k is the line through the points (3, 2k + 1) and (8, 4k − 5) parallel
1 answer:
Answer:
B: 3
Step-by-step explanation:
For the line to be parrallel to the x-axis, it means the slope is zero.
Thus;
(y2 - y1)/(x2 - x1) = 0
(4k - 5 - (2k + 1))/(8 - 3) = 0
4k - 5 - 2k - 1 = 0
2k - 6 = 0
2k = 6
k = 6/2
k = 3
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Add 2 and 5 then 1/8 and 5/8 to get 8 6/8. Then simplify by 2 to get D
or, if you mean 3x=(a+3)/b :