Answer:
A
Step-by-step explanation:
The |x+4| inside absolute value signs indicates that there's a horizontal translation 4 units left, so the vertex would be at -4 on the x axis. The -2 at the end means there's a vertical translation 2 units down, so the vertex would be at -2 on the y axis
Yes, DEF is a right triangle.
Y=-7 you subtract 4 from each side and then you get that <----
There will be seven spaces between the 1st and the 8th post.
The distance between posts is 20 meters
The distance between the 1st and the 8th post is 20×7 = 140 metres