Question

Equation of a line that has a slope of -2 and passes through the point (-1,8)

Answer 1

y= -2x +6

Explanation:

Since we have a point, and the slope, we can use the point slope formula

`y-y_(1) =m(x-x_(1) )`

m is the slope, y1 is the y coordinate of the point, and x1 is the x coordinate of the point

In this case, m is -2, y1 is 8, and x1 is -1, so we can substitute them in

y-8= -2(x--1)

Now, we need to solve for y

y-8=-2(x+1)

Distribute the -1

y-8= -2x-2

Add 8 to both sides

y= -2x +6