Gotta add a picture to show us what you want us to do.
The answers tell you the y-intercept is zero, so all you need to do is choose the appropriate slope. Since y/x = -4, ...
.. selection A is appropriate.
Answer:
40:16, 16:40, 40/16, 16/40
( 2x +5)^2 =4
2x+5=2
2x=-3
X=-3/2
$2.4
1.75+0.40x=2.7
-1.75 -1.75
-------------------------
0.40x=0.95
-------------
0.40
X=2.375