Question

How do you write the point-slope form of an equation of the line with m=-3, b=0?

Answer 1

`y-(-3)=-3(x-1)`

Explanation:

The previous answer is given in slope-intercept form. The formula for point-slope form is `(y-y1)=m(x-x1)`
So we can plug in any point to find the answer in point-slope form. Using `x=1` in the formula `y=-3x`,
`y` must be `-3`
So the answer in point-slope form is `y-(-3)=-3(x-1)`