1. y=x y= 2x – 4
-
y
10
0
8
6
4
N
--6-4 -2 0
2 4 6 8 10 X
-4
-6

How to solve it and what thw answer is

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.