Answer:
Explanation:
If you typed your question curretly, then the answer is y=-4 and you have a horizontal line.
In order to write an equation for a line, you have to find the slope in the first place which is (
). In this question, both y1 and y2 are -4 then the y2-y1 equals to zero and the slope will be zero. The general form of line equation is (y=mx+b). we know that m is equal to zero, then the term of mx will be zero. so y=b and b=-4. ( because those points are located on the this line)