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The equation y = kx - 1, where k is a constant, describes a line in the xy-plane. If the graph of this line contains the point (a, b), where a and b are nonzero, what is the value of k in terms of a and b?
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The equation y = kx - 1, where k is a constant, describes a line in th...
Original equation: y = kx - 1
Substitute x = a and y = b: b = ka - 1
Add 1: b + 1 = ka
Divide by a: 
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The equation y = kx - 1, where k is a constant, describes a line in the xy-plane. If the graph of this line contains the point (a, b), where a and b are nonzero, what is the value of k in terms of a and b?a)b)c)d)Correct answer is option 'A'. Can you explain this answer?
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