Question

Line GH passes through points (2, 5) and (6, 9). Which equation represents line GH?

Answer 1

2 points on the same line you can find the slope
using one of the points substitute in the equation of the line Y = m x + b
now you can find the intercept b
then write the general equation for any point (x, y)

Answer 2

\[\huge\rm\frac{ y _{2} -y _{1}}{ x _{2}-x _{1} }\]
this is formula to find slope
u have 2 order pair where first values is x and 2nd one is y
use \[(x_1 , y_1) ( x_2 , y_2)\]