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

1 answer

Use the slope formula.

m = (x2-x1)/(y2-y1)

2 = (2 -1)/(y-3)

Multiply (y-3) times each side of the equation.
Simplify and solve for y.