Given point M (1,3) and the equation, y = kx + 1:
I started by plotting point M on the graph at (1, 3).
Next, given the equation, y = kx + 1, it means that the y-intercept is (0 , 1). That’s where I plotted the next point—along the y-axis.
By definition, the y-intercept is the point on the graph where it crosses the y-axis, and has coordinates (0, b). Therefore, (0, 1) is the y-intercept, and its y-coordinate, 1, is given by the equation, y = kx + 1.
Attached is a screenshot of the graphed line.
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