Okay so what we’re doing here is that you have to divide 15 by 4. It won’t actually be a whole number because it’s going to have a remainder if you don’t know what a remainder is it’s a number that is left over. An example is like 15 divided by 8 is 1 remainder 7 , but long story short the answer is 3 remainder 3 ( 3 R3)
A parabola of the form, x = (a)y² + (b)y + c has a vertex, (h, k)
where
k = -b/2a
and
h = (a)k² + (b)k + c
In your case:
k = -0/{2(3)}
k = 0
h = 3(0)²
h = 0
The vertex is: (0, 0)
Let f = the focal width
f = 1/4a
f = 1/12
The focus is at
(h + f, k)
(1/12, 0)
The equation of the directrix is:
x = h - f
x = -1/12
Well on the second picture your answer is A
2. is B
The equation would y=mx+b. Thus, the equation with a zero slope would be, y=0x+4.
To find the amount he ate we just add the fractions:
3/8 +1/2 = 7/8 or 0.875
HOPE THIS HELPS!
HAVE A GR8 DAY ;-)