Answer:
the graph
Step-by-step explanation:
The statement "*Remember ..." tells you how to identify the functional relations.
__
In the top diagram, each x-value maps to more than one y-value. Effectively, that means x is repeating (not a function).
In the set of ordered pairs, the value 3 shows up as an x-value more than once. It repeats (not a function).
In the graph, each value of x is shown as corresponding to exactly one value of y. The graph shows y as a function of x.
Answer:
y= -2/3 x - 9
Step-by-step explanation:
The slope intercept form is
y = mx+b where m is the slope and b is the y intercept
y = -2/3 x+b
We have a point to substitute into the equation
-5 = -2/3(-6) +b
-5 = 4 +b
Subtract 4 from each side
-5-4 = 4-4+b
-9 = b
y= -2/3 x - 9
C because all the angles have to add up to 180
So the equation of the red graph is already given to us: 
. I assume you meant the blue graph?
We can use the vertex form: 
, where 
is the vertex. (We can ignore 
because is 1 for this graph.) Remember that the vertex is the maximum or minimum of a parabola and the point that the line of symmetry passes through. For f(x) the vertex is (0,0).
The vertex for 
is at 
on the coordinate plane. (4 left, 2 down)
Plug into the vertex form:
The double negative becomes a positive, and then you're done:
