Algebra II
posted by Will .
A line has a slope of 2 and contains the points (1, 3) and (2, y). The value of y is what?
Please explain in detail

Use the slope formula.
m = (x2x1)/(y2y1)
2 = (2 1)/(y3)
Multiply (y3) times each side of the equation.
Simplify and solve for y.