Answer:
equation of the line is, y = x + 1
Explanation:
let's take any two co - ordinates from the graph given below
x1, y1 = 1, 2
x2, y2 = 3, 4
equation of the line is, y = mx + b
where slope, m = y2 - y1 / x2 - x1
= 4 - 2 / 3 - 1 = 2/2 = 1
let's take x1, y1 as the x, y co - ordinate to find the constant b,
y = mx + b
2 = 1(1) + b
b = 2 - 1 = 1
by substituting the values, equation of the line is,
y = mx + b; as m = 1
y = x + 1