Question

Find an equation in slope-intercept form of the line that has slope –7 and passes through point A(-7,-2)

Answer 1

B:y=-7x-51

Explanation:

Answer 2

Using the point slope formula we have:


`y - y1 = m(x - x1)`
Add y1 to both sides and we have:


`y = m(x - x1) + y1`
Now plug in x1,y1 and m (slope) where point A (-7,-2) where x1=-7 and y1=-2 and m=-7 and so:


`y = - 7(x - ( - 7)) + ( - 2)`
By distributing the slope we have:


`y = - 7x - 49 - 2 \\ y = - 7x - 51`
And do your slope is -7 and the y- intercept is -51.