7(6+2) = 7(8)=56
The answer is:
7(6)=42 + 14=56
1/4-1/16=
=1*4/16 - 1*1/16
=4/16-1/16
=3/16
Or 1/8
Here, the equation of parabola is: (-36y)=x^2
The standard form of parabola is:
(X-h)^2=4p(y-k).
According to given equation, vertex = (0,0) and p = -9
This a vertical parabola opening down, because p = -9 here.
Therefore ditectrix will be y= -9
Eq. of given line is x = -2 》x + 2 = 0
3p < 12
p < 4
and
-3p < 12
p > -4
answer
-4< p < 4
It's C. third one
