Answer:
-(11x-18)
Step-by-step explanation:
factoring -1
Answer:b
Step-by-step explantion took it on edge
Answer:
C = 13
Step-by-step explanation:
A²+B²=C²
where c is the hypothenuse
5²+12²=c²
25+144=c²
169=c²
√169 = c
13 = c
As the directrix is parallel to x-axis, the concavity of the parabola will be in vertical. Then, the general equation is in the form:

, where

are the coordinates of the vertice and p is the parameter (distance between the focus and the directrix). The parameter is

. The vertice is the midpoint between the focus and the projection of the focus in the directrix. Then, the vertice is

. Hence, the parabola is:

Now, derivating: