Question

What is the equation of this line?

y=2x−2y=2x−2

y=−2x−2y=−2x−2

y=12x−2y=12x−2

y=−12x−2

Answer 1

slope-point form:
y=mx b

We need two points to work out the slope; for example in this line we have:
(0,-2)
(4,0)
m=(y₂-y₁)/(x₂-x₁)

m=(0+2)/(4-0)=2/4=1/2

In this line the y-intercept (b)=-2

The equation of the line will be:   y=1/2 x-2

Answer: y=1/2 x-2