import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		PrintWriter pw = new PrintWriter(System.out);
		for (int z = 0; z < t; z++) {
			String[] sa = br.readLine().split(" ");
			long ax = Integer.parseInt(sa[0]);
			long ay = Integer.parseInt(sa[1]);
			long bx = Integer.parseInt(sa[2]);
			long by = Integer.parseInt(sa[3]);
			long cx = Integer.parseInt(sa[4]);
			long cy = Integer.parseInt(sa[5]);

			long v1 = cy * (ax * bx - ay * by);
			long v2 = cx * (ay * bx + ax * by);
			if (v1 == v2) {
				pw.println("Yes");
			} else {
				pw.println("No");
			}
		}
		pw.flush();
		br.close();
	}
}