Considering the directrix and vertex given in the graph, the equation of the parabola is:
B. 
<h3>What is the equation of a parabola given it’s vertex?</h3>
The equation of a quadratic function, of vertex (h,k), is given by:
(y - k)² = 4p(x - h).
In which the directrix is the line x = h - p.
Looking at the graph, we have that:
- The vertex is (-2,-2), hence h = k = -2.
- The directrix is x = -1, hence -1 = -2 - p -> p = -1.
Thus the equation is:
(y + 2)² = -4(x + 2).
Writing x as a function of y:
B.
More can be learned about the equation of a parabola at brainly.com/question/17987697
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Answer:
Option B. 
Step-by-step explanation:
we know that
The volume of a cone is equal to
Solve for the radius r
That means-----> isolate the variable r
Multiply by 3 both sides
Divide by 
both sides
square root both sides
Answer:
second number= X
first number = X+8
third number X/3
sum of three numbers is 50.
X+X+8+X/3=50
2x+x/3=50-8
(6x+x) / 3 =42
7x =42*3
X =42*3/7
=18
Second number=18
third number= 18/3=6
first number=18+8=26
Step-by-step explanation:
3 - 11x
x is "a number".
so, the request is to multiply it by 11 and subtract the result from 3.
Answer:
Step-by-step explanation:
C
