Question

A line passes through the points (2,-2) and (-6,2). The point (a.-4) is also on the line. What is the value of a?

-10
8
6
+
4
-2
2
4
6
8
10
x​

Answer 1

6

Explanation:

Hey there) The formula of your line is:

`-2=2k+b\\2=-6k+b\\=>4=-8k\\k=-0.5\\=> b=-2+1=-1\\=>y=-(1)/(2)x-1\\`

If point has y=-4, then:

`-4=-(1)/(2)a-1\\4=(1)/(2)a+1\\a=6`

Hope this helps) Have a nice day/night :)