The first one is a parabola opening sideways so it will not pass the vertical line test
B not a function as it can be arranged in form x = expression in y^2 so it would be a one-to-many relation.
D is a function because its a parabola which open upwards so it will pass the vertical line test
Answer:
- Center = (3, 0)
- Radius = 3
- Graph = see below
Concept:
Here, we need to know the idea of the circle equation.
Circle equation: (x - h)² + (y - k)² = r²
(h, k) = center
r = radius
x = variable
y = variable
Solve:
<u>Given expression </u>
(x - 3)² + y² = 9
<u>Find the point of the center</u>
(h, k) = 
<u>Find the length of the radius</u>
r² = 9

Hope this helps!! :)
Please let me know if you have any questions
Answer:
C.)9
Step-by-step explanation:
You add up all your data to get 54 and divide by the amount of numbers you had in the data which was 6. So if you divide 54 by 6 you get 9.
Answer:
The vertex is the point 
Step-by-step explanation:
we know that
The general form of an absolute value equation is

The variable a tells us how far the graph stretches vertically, and whether the graph opens up or down. The variables h, and k, tell us how far the graph shifts horizontally and vertically
The vertex is the point (h,k)
we have

Rewrite the expression (3x+1)

substitute



therefore
The vertex is the point 
see the attached figure to better understand the problem