Answer:
b = −108
Step-by-step explanation:
Solve for b by simplifying both sides of the equation, then isolating the variable.
A
x=y^2-9
x+9=y^2
square root both sides
+-sqrt(x+9)
An outlier causes the median to move slightly towards the outlier.
let's firstly convert it to an improper fraction.
Answer:
Directrix
Step-by-step explanation:
The <u>directrix</u> of a parabola is the line, along with a point not on the line (which is the <em>focus</em>), which is used to generate a parabola. The <em>directrix</em> is parallel either to the x- or y-axis, and is perpedicular to the parabola's axis of symmetry (at x = h).
Therefore, the correct answer is "<u>directrix</u>."
