This is a positive parabola so it opens upwards. The equation for the directrix of this parabola is y = k - p. k is the second number in the vertex of the parabola which is (0, 0), but we need to solve for p.

The form that the parabola is currently in is

$y=a(x-h)^2+k$ so that means that $a=\frac{1}{8}$ . We can use that to solve for p in the formula

$p=\frac{1}{4a}$ so

$p=\frac{1}{4(\frac{1}{8}) }$ which simplifies to

$p=\frac{1}{\frac{1}{2} }$ which gives us that

p = 2. Now to find the directrix:

y = k - p becomes

y = 0 - 2 so

y = -2, choice A.

6 0

3 years ago

Please help asap!!!!!!!!!!!

mars1129 [50]

X = 59, y = 44

2x + 18 + x - 15 = 180
3x + 3 = 180
3x = 177
x = 59

x - 15 = y
59 - 15 = y
44 = y

6 0

3 years ago

Read 2 more answers

Please help. will give brainliest

jenyasd209 [6]

Answer:

Step-by-step explanation:

General probability is 3+5+4=12

3+4=7 (oranges and bananas answer is c

7 0

3 years ago

Ice Cream: A certain ice cream parlor offers 15 flavors of ice cream. you want an ice cream cone with three scoops of ice cream,

Olenka [21]

Answer:45?

Step-by-step explanation:

8 0

3 years ago