Answer :
The slope of the line that passes through the points (x1, y1) and (x2, y2) is computed as follows:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]The line passes through the points (0, -1), (2, 3), then its slope is:
[tex]m=\frac{3-(-1)}{2-0}=\frac{4}{2}=2[/tex]The slope-intercept form of a line is:
y = mx + b
where m is the slope and b is the y-intercept.
Given that the line passes through (0, -1) then the line intersects the y-axis at -1, that is, b = -1.
Therefore, the algebraic rule is:
y = 2x - 1