Point slope form of a line:
we need a point (x₁,y₁) and the slope m
y-y₁=m(x-x₁)
We have a point (0.5 , 0.2) and the slope can take any value.
For example, if m=1
y-0.2=1(x-0.5)
y=x-0.5+0.2
y=x-0.3 (y=mx+b ; Slope-intercept form).
Answer: the equation of the line can be:
y=x-0.3
if m=2, then:
y-0.2=2(x-0.5)
y=2x-1+0.2
y=2x-0.8
other answer: the equation of the line can be:
y=2x-0.8.