0.6 is 10 times as much as what

If a translation of t-3,-8(x, y) is applied to square abcd what is the y-coordinate of b'? the y-coordinate of is 43 mark this and return save and exit next submit

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

If chord ab is congruent to chord cd, then what must be true about ef and eg?