The answer would be choice C.
Perpendicular lines cross each other and form a right angle as you can see marked in the third picture.
Answer:
m=1
Step-by-step explanation:
12m+5=17
-5 -5
12m=12
m=1
Answer:
h=3.24
Step-by-step explanation:
Answer:
D. 
Step-by-step explanation:
There is a translation 1 point up along the y axis and a compression of 4.
Moving a function up (let's use <em>h</em> for the amount of points up) would change the function as so:

Meanwhile, the compression would modify x in this case. You can eliminate any answers (A. and B.) that have no modification to x, and eliminate C., as a fraction modification would actually widen the graph instead of compress it.
Hope this helps! :]