Answer:
-1.3
Step-by-step explanation: you distribute the negative sign to -2.9 so it turn to positive 2.9 and your left with -4.2 + (-2.9) = x and then you solve by doing -4.2 + 2.9 to get -1.3
Check out the picture I've got the full explanations on there
Hope it's clear
Answer
6,7,-4,8 wold work becuse you cant have two of the same x's
Step-by-step explanation:
Answer:2.5
Step-by-step explanation:
(3,7) becomes (3,-7) when reflected across the x axis.