RRB Government Jobs Exams

Which of the following is not a correct description of the graph of the function y - 2x - 7?
a) The graph of the function contains the point (-2, -3), and when the value of x increases by 1 unit, the value of y decreases by 2 units.
b) The graph of the function contains the points (-1, -5), (2, -11), and (4, -15).
c) The graph of the function is a line that passes through the point (0, -7) with a slope of -2.
d) The graph of the function contains the points (0, -7), (1, -9), and (3, -1).

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RRB Other Question
In the quadratic equation x^2 - x + c = 0, c represents an unknown constant. If x = -3 is one of the solutions to this equation, what is the value of c? If (2k, k) and (3k, 4k) are two points on the graph of a line and k is not equal to 0, what is the slope of the line?
a) 3
b) 3k
c) 13
d) Not here