The true statements from the options given are ;
On a number line , The value, 0 sits at the center or middle. Values to left of 0 are negative and decreases as we move further to the left.
From the number line ,
- -9 < -7 as -9 lies to the left OP-
- -1 > -3 as -3 lies to the left of -1 on the number line.
Hence, the true statements are,