Knowing that x varies directly with y, we know the basic skeleton of the equation is
y = mx.
To find
m, plug in the known coordinate
(8,10), where the
x-coordinate is
8 and the
y-coordinate is
10.

Then, plug in m to the equation to get
y = (5/4)x.
Finally, plug in the y-coordinate
18 to the equation and solve for x!

Your exact answer is
x = 72/5. However, if your teacher prefers decimals, then
x = 14.4Hope this helps!
Answer:
x = 2
Step-by-step explanation:
The parallel lines divide the transversals into proportional segments, that is
=
( cross- multiply )
9(x + 4) = 54 ( divide both sides by 9 )
x + 4 = 6 ( subtract 4 from both sides )
x = 2
11 5/8 + 9 1/2= 21 1/8
3/4 - 2/5= 7/20
4 5/6 - 2 1/2= 2 1/3
I think these are right, I apologize if they are wrong.
Answer:

Step-by-step explanation:
This is horizontal parabola.
It has a directrix at x=-6.
The vertex is (0,0).
The focus is (6,0)
The equation of this parabola is of the form

Where (p,0) is the focus
By comparison, p=6
Therefore the equation of the parabola is

This implies that
